What champions do you think will have the most success in dominion offensively and defensively?

I think Shaco and Teemo will be very good picks. They have very good mobility and i think the shrooms/boxes will help alot when defending and attacking capture points.

Twisted Fate, Pantheon, Kassadin, Poppy, Rammus, Blitzcrank.

Those are the only ones I can think off the top of my head right now.

akali

constant fighting = constant shadow dance

Anyone with high mobility and good sustain. Duelists look viable as well. Squishy carries and glass cannon ap looks to be not very useful, with exceptions.

Personally, considering what I've seen with a lot of the little skirmishes vs like 5v5 fights on Summoner's Rift, I actually think Tryndamere wouldn't be so bad, simply because he can get in, slice someone up a bit , spin out, and rinse and repeat of course going for the kill when he has his ulti.

any assassin
mostly Lee Sin and Xin should be gods

Shaco, Heimerdinger, Rammus, Pantheon, Twisted Fate

If you can set up traps/protection, move quickly, or teleport, you're set.

Karma. Calling it. AOE haste for team-wide mobility. Lots of AOE splash. Clutch heals will fit into the fast-paced game style. Fast gold income means a fast deathcap and quickly maxed CDR.

Twisted Fate... thats gonna be so gay

AP Shaco will be even more hilarious