Not an expert by any means but I have seen several complaints about NSU, and the biggest complaint I've seen about TUNCOM is that it's in Vegas (in reality, it's in a pretty nice suburb of Vegas). Unless you want an MBS, it may be good just to lock in and pursue medicine so you don't have to wait longer to get into what you're really passionate about. The DO stigma isn't much of an issue, and they match to competitive specialties. Do you have more specific pros/cons of both, like cost and location?