Dominion is a different type of game when you have been playing only Summoner’s Rift for so long.  Here is a break down of all the league of legends champions with reasons why they are either good or bad picks for the Dominion Crystal Scar map and Dominion game mode.

• Akali: Overrated. Really good early game, yes, however she isn’t very good late game. She is super easy to counter thanks to a cheaper Oracles, Light bringer being good for tons of AD carries, and Hex tech Sweeper being amazingly efficient and incredible. Defiantly a solid pick  but is outclasses by a few others later on in late game.
• Alistar: A nice character to have up top. Provides 2 things of CC and a solid heal that can win you the fight. Once Alistar  hits level 6, he can be a very annoying defender to get off a shrine. Should build him more tanky DPS than Summoner’s though imo.
• Amumu: The sad mummy isn’t bad actually, % based AoE damage owns, easier to land bandages, and his ult can be a game changer if you a big 4v4 fight starts. Underrated
• Anivia: A solid solo bot, has extreme pushing power at 6 (doesn’t have to worry about mana with the 2 health packs either), solid damage, and playing solo bot makes her lack of mobility to get to other points not matter as much.
• Annie: So-so solo bot, pretty decent up top but you can pick better champions for both IMO.
• Ashe: A really good zoner, ult is pretty awesome for shrine denial, above average.
• Blitzcrank: He gets to land easier hooks since people are stationary while capping and there is less creeps blocking his hooks. Fairly tanky built in.
• Brand: By far one of the best AP Mages for Dominion. % based damage owns, AoE is great for shrine denial and Hextech Sweeper, skillshot easier to land, and his ult will have more opportunities to be pulled off coz of lack of creeps.
• Caitlyn: So far seems decidely mediocre. Great range for shrine denial, but her carrying is lackluster compared to other options.
• Cassiopeia: Really really good solo bot, not bad up top, good shrine denial, strong AP caster, great canidate for Hextech Sweeper, etc.
• Cho’gath: When built as an AP caster, he is very good. His silence and knock up is very good and he can really put out some great early game damage.
• Corki: Pretty decent AD carry for Dominion.
• Dr. Mundo: One of the few characters who I would say is outright horrible on Dominion. Mundo relies on two gimmicks to do his AD Carrying: his ult…that gets nerfed by the Crysta Scar buff, and his E which owns laning phase, a phase that doesn’t exist in Dominion. Other options can be tankier and do way more damage.
• Evelynn: Really strong back capper, great when built AD, easily countered by organization and revealing items.
• Ezreal: Not bad AD carry actually, has strong shrine denial with his ult.
• Fiddlesticks: Fear owns, and if you pull off an ult onto top from the bushes, you basically get free kills. Not terrible at all really.
• Galio: Gets his team to top quicker, strong solo bot, ult can make clutch plays.
• Gangplank: Gets his team to top quicker, not bad up top, strong shrine denial, solid AD carry, good tanky DPS.
• Garen: One of the other few characters I would say is outright horrible on Dominion…all the good things about him (his silence, sustain, AoE damage, tanky) other characters can do better or don’t matter in Dominion.
• Gragas: Not bad at all honestly, decent shrine denial and harass with his ult and long ranged barrells from Q.
• Heimerdinger: Strong solo bot, strong top character, great pusher.
• Irelia: Strong solo bot, great top character, hard to take down when she gets her farm (which she will in Dominion), ult isn’t as good on healing but still rocks.
• Janna: Underrated. Speeds her whole team up, has strong denial, has an AD Carry buff, can backup safely and easily…
• Jarven IV: Provides a lot of buffs/debuffs, ult owns, strong shrine denial, good character.
• Jax: I shouldn’t even have to say anything, easily amazing AD Carry, rocks hardcore, wrecks everybody with a few items, weak early game but gets strong fast.
• Karma: Has a speed boost and some decent damage, but seems underwhelming.
• Karthus: One of the best AP Mages in Dominion, incredible shrine denial powers, global ult, huge slow that can block the small pathways easily…
• Kassadin: Kassadin is really good with farm, farm he will always get in Dominion. Really good, especially with spammy characters that tend to be played on Dominion.
• Katarina: Extremely underwhelming. She’s really good with farm, but she’s bad in Dominion for the same reason she’s bad in SR: her whole gimmick is her ult and it’s so easily countered by a proper team comp that it’s lol.
• Kayle: Absurdly strong solo bot against a lot of solo bots, really good up top, has a speed booster, can be built to carry and with her ult up will win any fight.
• Kennen: Not bad but feels mediocre. Better options out there.
• Kog’maw: Absurd shrine denial, gets his Razor much quicker thanks to it being cheaper, absurd damage, really really strong.
• LeBlanc: Leblanc isn’t a poor choice for a burst-er, but there are better options. Mind that Leblanc is really good early game, and that early game fades fast on Dominion.
• Lee Sin: Really strong and amazing, just like Summoner’s Rift.
• Leona: Pretty gimmicky. Doesn’t put out a lot of damage but can spam stuns. Way better options out there.
• Lux: Very high shrine denial on a low cool-down with her ult, high CC, decent damage. Very good.
• Malphite: Not bad up top at all, not picked much tho.
• Malzahar: Extremely good solo bot, really good up top as well, his ult owns.
• Maokai: Underrated, has good shine denial and can enable ganks easily. His ult turns the tide of fights since it can cover an entire shrine.
• Master Yi: High mobility AD carry with a good self heal. What more needs to be said?
• Miss Fortune: Not as good as expected, but not a bad ranged AD carry either.
• Mordekaiser: 3rd character that I would say is pure awful. Bad solo bot against any good one, does poor damage up top. His only saving grace is his ult with all the souped up AD Carries going around, but you could just use a good character instead.
• Morgana: High damage, good CC, decent shrine denial, spell shield owns. Good.
• Nasus: Underrated A LOT. Unlike Summoner’s Rift you shouldn’t be looking at his Q, on the flip side his Wither makes Nasus amazing on Dominion – dominated by tons of AD Carries and you get an Exhaust on a 9s cooldown. Wrecks.
• Nidalee: Also underrated imo, much easier to land spears since there’s less creeps and people are stationary. Not bad at all. Has good mobility in cougar.
• Nocturne: Amazingly strong AD carry with a built in Banshee’s (a blocked item!), high mobility ult, and good scaling. Extremely good.
• Nunu: Not bad at all, good single target slow, good ult for shrine denial, Blood Boil is amazing with souped up AD Carries…
• Olaf: Scales really freaking fast on Dominion. Solid AD Carry with amazing skills.
• Orianna: Very strong shrine denial, slow is annoying coz the AoE is so huge.
• Pantheon: His 100% crits enables him to wreck up top early on and all game without many DPS items. Ult wrecks.
• Poppy: Poppy is ridiculous – there’s walls everywhere for free stuns, she can make herself invincible even to the spawn lasers, she gets farm really quickly. Poppy can guarantee kills, 100% of the time.
• Rammus: Rammus guarantees you a Windmill capture pretty much, he counters AD Carries easily, he’s super mobile. Amazing….you didn’t need me to tell you that.
• Renekton: Haven’t really seen much of him to be honest. Initial impression is underwhelming.
• Riven: Riven is actually really good in Dominion, albeit not being able to go through walls (of which there is plenty) hurts her a lot. Does solid damage and can be really annoying all game long with the proper build.
• Rumble: His ult is great and his flamethrower is annoying up top, but also a decent solo bot.
• Ryze: Underrated. Ryze is one of the few champions who can easily deal with Jax et al when properly built. Strong damage, strong root, gets scaled up quick.
• Shaco: AP Shaco is one of the best defenders in Dominion. JITB wrecks.
• Shen: Haven’t seen much of him. Ult + taunt would be good but seems mediocre.
• Singed: Singed is annoying like he always is, but I actually think there are much better picks than him on Dominion.
• Sion: AD Sion is an amazing AD Carry, because AD Sion excels at winning small player count size skirmishes, which is what Dominion basically is. Very hard to kill, might require a QSS depending on opposite team tho.
• Sivir: Built in Banshees, range is less of a problem thanks to map layout. Decent, not good or great.
• Skarner: Not seen much of him, ironic considering the Crystal Scar is his home. No opinion yet.
• Sona: Speed boost, easy to land stun, decent damage, great support with an organized team. Bad if not organized.
• Soraka: Built tanky she can shrine deny and hold a point all day long. Pretty underrated imo.
• Swain: Tanky DPS mage, not bad at all, decent choice for Hextech Sweeper, can hold shrines well enough.
• Talon: Really good bursty AD character. Gets absurd quickly, good choice.
• Taric: Not seen much of him, seems like building him somewhat tanky he could hold a point very well just like Soraka.
• Teemo: Super annoying, AP Teemo will make you cry, AD Teemo will make you melt. High speed character with wards and an anti-AD carry ability. Good.
• Tristana: Not seen at all…literally. Probably not very good, all things considered.
• Trundle: Really strong but underrated imo. Good skill set, strong damage.
• Tryndamere: Trynd is one of those characters like Poppy who has a weakness of needing farm, which they get guaranteed in Dominion. Once you reach late game, Trynd wrecks harddddddd. Can win absurd fights thanks to his ult.
• Twisted Fate: His ult owns, his constant stuns are good, good damage output, Pantheon in the same role is probably better.
• Twitch: Twitch is actually pretty good. His long range makes for good shrine denial and he gets farm quick on this map. Not great by any means, but good.
• Udyr: Not seen much of him from others, his constant stuns and survivability make him super annoying up top, and he can defend RF and Drill easily.
• Urgot: Pretty good, ulting someone onto your shrine (or AP Shacos JITB…) never gets old.
• Vayne: AD Carry who does true damage and is hard to chase. She’s good.
• Veigar: Hit or miss. If you have a team that lets you get all the kills to farm your AP he’s ridiculous. If you get tons of assists, he’s pretty bad.
• Vladimir: Really good since his weak lane phase no longer matters. Ult is a huge AD Carry steroid and his pool is great shrine denial.
• Warwick: Solid solo bot against all but the very strongest ones. Solid up top too to boost your AD Carries with his W.
• Wukong: Very strong, decoy is annoying, does solid damage, scales quickly.
• Xin Zhao: Extremely strong AD Carry.
• Yorick: The best solo bot in Dominion, no other character can really take on a Promote Yorick in a 1v1 bot and hope to win, beating him requires sending someone from top to deal with him which causes a huge chain of bad events for the other team. This is a character that no one bans or plays, yet if they did they would free win bot guaranteed if they knew how to play him and wish he was banned.
• Zilean: Speed boost/speed de-buff, revive ultimate and some good harass, he’s not bad at all :D.