Well, I preferred (past tense) doms until the most recent changes, and now I think I may like controllers better.
The reason being: I mostly solo, using not terribly strong builds, and doms do damage that controllers don't (or didn't).
Also, "prefer" is a strong word, I play every AT, but I've got many more Doms to 50 than Controllers. But, that may now start to balance out.
I agree Doms should get a buff.
Something I've noted recently: Only two ATs don't have either Armor or Buffs, and those are Blasters and Dominators.
I wish Domination worked more like Fury. You get your bar filled and Domination is up, and it stays up as long as you keep your bar filled.