I'd recommend WoW, it still has a huge playerbase and if you get into it there is an expansion coming out in about half a year. From the two you listed, I enjoyed SWTOR more, but haven't played it since launch basically so my opinion there means little to nothing. I never really got into GW2, I felt there was very little that really pulled me into that game and very much I straight up disliked.
The starting and low level areas are pretty dead now in WoW aren't they?
Now let's wait a couple of seconds before the first one that will say "2014", while the year is not even halfway yet and allready alot of good games were released...
2014 Has so far been pretty damn shitty, after 6 months I have bought ONE tripleA game, that being Infamous: Second Son, the others I have had no interest in whatsoever. And to be honest, the rest of the year dosn't look so good either in my opinion.
@raven10: You played as a dude, can't really remember the story, or who you was. This was a early 3D game, the art style might have been a bit cartoonish, but still a little bloody. Can't really tell much about pick ups and power ups, I just remember them being there. I'm sorry, It's just so blurry, I'm probably just grasping at straws here.
So this was an PC game from the early/mid 90's (It might have been on other stuff too, not sure). It was an isometric view/top down shooter with a scifi theme. You picked up weapons and power ups, and I think MAYBE some kinda mecha suits ( not quite sure on that one tho) and you blasted away humans and monsters, all the levels took place indoors as far as I can remember. The game had a single player campaign and local multiplayer, but no co-op I think.