I voted for 2nd Edition since that was the edition I had the most fun with, but really I'm open to most games. I can't get too into the 3.x/4 fight since I didn't like 3.x enough to really defend it and I haven't tried 4 enough to get an idea either way. Mostly for me it's the further move towards using miniatures. I know that's how the game started, but I literally never used minis from 1980 to 2005 or so when I found a 3.x group. I find that take you out of the flow of the game and if I find 4 can be played sans mini I might have to revise my rankings, but probably not.