I main nocturne, and he is in bottom for my top choices, maybe it's cause i refuse to build any real attack speed item iom him?

1) Rammus (insane speed + interrupt + tanky)
2) Nocturne (global ult + speed + great offense)
3) Poppy (insane speed + great offense + ult)
4) Singed (poison defense FTW)
5) Akali (nearly impossible to kill in Dominion if played well)
6) Panth (apparently his ult is invisible to enemies in Dominion atm (bug?))
7) Ganplank (global ult + great offense + speed)
8) Garen (spin-to-win!)
9) Teemo (mushrooms on every buff! U want speed? U want health? NO!)
10) Heimer (turret defenses nigh unstoppable!)

I keep seeing Tryndameres pwning. I think it's the sustain from self-heal

I also hear Rammus es pretty good

Nocturne is just good

Oh! I've been seeing AP Shacos do well too

Rammus, Xin, Heimerdinger, Yi, Kassadin, Ezreal, Akali, Singed.

Also Riven is way better than she is on SR, almost top tier

katarina

Rammus, Shaco, Teemo, GP, Akali, Talon, Singed, Lux, Pantheon and Poppy

Tanky kassidin works really well. He has about 25% magic negation and map mobility due to being able to ulti over nearly every wall,

Yes Shaco seems like a very good champion for Dominion.

Rammus, Shaco, Heim, Akali, Singed, Tryn, Jax, Swain, Poppy, and Janna. Those are my top 10 guess.