What would you guys say is the most rewarding class or spec in pvp without being op?
An example of what I'm talking about just in case it isn't clear:
Frost and Unholy Death Knights in Cata. Frost was powerful but really easy to play so anyone could get decent results whereas unholy had a bit higher skill cap so it seemed kinda bad to a lot of people but when you were good at playing Unholy it was actually really strong and rewarding.
I'm talking for arenas/rbgs/bgs/duels.
I've been thinking Balance Druids might take the cake right now. I never seem to encounter any Balance Druid that plays the same as the last, some I come up against are pretty hard to kill, have decent CC, and good damage, but some are very easy to kill, don't CC well, and mediocre damage. I'm only accounting for the ones with gear, so that's not the issue. So they seem to me that they're really rewarding if you can play them well, but really bad if you can't.