Believe it or not, Death Knights are actually the currently most balanced and ''in the middle'' melee class for PvP. They aren't as insanely broken as Rogue, and they aren't as shitty as a warrior in 3s. Yet people always bitch and cry on the most absurd and useless things (Blood) when they cannot find something to genuinely complain about in a competitive setting (Frost/Unholy).
So seriously, Learn to play and stop crying when DKs are the most balanced melee on the roster atm, while Hunters are the most balanced ranged class.
Cy@