I used to pvp in WOW, but (I think) Blizz messed things up with the new talent system. It just hasn't been the same since then. I was hoping for a recovery in WOD, but it just hasn't happened. They put all their WOD pvp eggs into one basket (never a good idea) with Ashran and it is safe to say that it has totally flopped. For pvp now I play GW2. It doesn't have the outdated and silly gear grind, the devs are truly dedicated to pvp in that game and it gives you the freedom to play around with a lot of different builds. For the x-pac they are adding guild v guild pvp (strongholds) which should be crazy.