As of the current Cata information, I think Hunters will be the weakest.
Right now were great burst damage, but in Cata... Not so much.
Well basically cast 2 shots then have to regen Focus. To regen that Focus faster well have to cast Steady Shot.
You cant cast Steady Shot while moving, so well have to stand still.
While were standing still a Melee will run up to us and start beating us up.
But we wont have enough Focus to Deterrance or Disengage... So well sit there and wait a few seconds before we can do anything