Meh, I'm normally a healer. I love the chaos of my grid. PVE is too scripted, but when you have dozens of bodies all over the place, you can't possible prepare for what you can prepare for when your gladius loads and you know the opposing 3 man team. It's rather shit to me.
I'd rather beat 40 people than 3.
pvp= player vs player
Its about as much arenas/battlegrounds as 100 vs 100 (which WoW engine cannot really handle).
The game would be much more interesting if there were actually player invasions or castle sieges. Capture the flag and king of the hill belong to the fps genre