I voted for PvP. I personally think the grouping system and raids and everything are broken. I don't know if it's just our server, but they make it so hard to get even the crappiest raiding gear through hard modes that it's really not worth spending the time to try to not be able to find a group because everyone else is off doing PvP.
I think WoW did a much better job with, and has a much more user-friendly/social, PvE system. SW:TOR is highly lacking in that aspect. If they add multi-realm LFG queues or even same-realm, it would help a lot. But right now it's just too hard to find groups.
