Well, warriors are a different game now that they're not almost completely immune to fears. They're a bit easier to take down, for sure. I'd probably go with a kite tactic if possible (though difficult with spamstring).
Priests, Mages, caster shamans, boomkins (and potentially trees), CoT, dot/nuke/fear.
Enhancement shamans, I've never been very good against, but try to fear them and always destroy their totems.
Hunters, live through BW if BM, dot pet, dot hunter, los. MM and SV hunters are easy.
Rogues, go get a sandwich.