We've been playing 3.5E with a couple of us DMing but none of us seem to be the DM types and it's gone interestingly... Fine with doing any other versions and we'd be playing from level 1 and most likely making new characters. We take the game rather lightly and while we do rollplay a fair bit, we don't do it too seriously. I personally like the decision making in DnD. We're all pretty flexible when it comes to time to play so I won't ask a set schedule.