Warriors with the right spec and gear are way up on DPS and can farm just as good as the other dps classes.
Arms or Fury spec is preferred. Prot can use 2x 1h or a 2h weapon to maximize dps but it doesn't really compare to the dps specs.
Warriors don't really have a pet to take the dmg or chain stuns or range so they will take dmg unless they can kill the mob in a few hits.
So its recomended to take a few stacks of food whenever you plan on farming for a longer time. And some bandages or pots for emergencys.
Other then that try to find areas that arent completely clustered or youll have to use your ranged weapon to pull wich will mean you loose the stun and initial rage from charge.
Happy farming
Warrior farming
