I am pretty new to warlock as i usually play paladins.. I know what to play in PvP but i can;t decide if i should go affli or destro.. Before u say that both are good i want u to know that i am low GS and i want the to pull more dps for now before i gear up and actually make difference if i play afflli or destro.
When I use to play on Molten MoP, I had a PvP Destro Lock. I loved the dps output. Im sure this doesn't help your question.
But I've always been told Destro is the way to go for pvp. But its hard to master. Warlocks in general ain't an easy class to learn for those who never play em.