depends on the game really; for Tactical Games I like a small but hardcore community (ironically I don't play RTW Online), For FPS I like a medium sized community, because it offers the chance to play a game with quite a few players, some good, some bad, but overall most of the n00bs have left. For MMORPGS I like a very large community, mostly because it makes the world seem a little bigger, and... kind of, maybe, sort of realistic...