PvE all the way here. I once rolled on the most unbalanced Oceanic server I could find at the time. I could barely got my team out of Honor Hold (was playing Alliance that time) it was so bad.

I can see the points people are making for PvP servers here, but for me, I'm a PvE'er - not much interested in PvP - so rolling on a PvP server would just be a bad choice for me.