I've been playing Warlock for about 3 years, and had great fun playing it. The only thing I really, really hated was doing BG's and getting constantly picked on by every freakin' rogue in the entire area. It was like there was a huge sigh on top of my head wich said "I'm the Warlock, drop everything you do and come this way to kill me." Or rogues camping ones Graveyard, sapping you while the others are mounting up and run away. Or killing lowbies in world-PvP, for no apparent reason.
But I also rolled a rogue some time ago, because I thought the class might be nice to play. And the moment I stepped into a BG for the first time,
it happened: I turned into a jerk, just like what I discribed above. Picking on the low-lvls, camping GY's, going after the squeesy casters.
What is wrong with this class?
I really enjoy being a rogue, I found it one of the most intresting classes to play, and the PvP is just great. Now I'm in the 80-84 bracket and every time I see a lvl 80 ress at their GY I can't help it but kill it time after time. The only thing I refrain from is having /lol macro'ed...
TL;DR
I rolled a rogue, turned into a jerk and I love it! ^^