RTW/BI/Alex is the same game, so I voted for all three. If the game is bad, expansions rarely fix it. RTW had all the building blocks of a good game but CA seem to have failed to get it all together for the release day. It's a "fun" game for a few of the high speed arcade like battles but is so severely imbalanced that that's about it. It's a very "gamey" game if that makes sense? With STW/MTW it didn't feel like you were playing a game at all, more of a "simulation"/strategy. I haven't bothered with M2TW as I didn't like RTW's campaign map, this pretty much rules me out of all future TWs as well.