It's all down to personal preference, I would take a look at both XBL and PSN and see which you prefer; along with the games and all. But it wouldn't hurt to wait for the PS4 or 720, would it? That way you could be saving money up to the release and would be able to splash more cash on games when one of them do get released. Since you have a PC and a Wii U, surely you can wait. You can spend time playing on those 2. You're set until the release of 720 and PS4.