Rate on my chance to Princeton!?

Your numbers may hold you out. For Princeton you probably need a 2300 on the SATs and if not, at least 2250. If you had a 3.4 freshman year, that is more B's than A's. Just because they look mostly and junior year, they still see your freshman year grades. They like to see if your fairly consistent, or if you just studied real hard because you finally thought about college. You will need most likely a serious hook or legacy at Princeton to have a real shot there. I would say, you have similar odds, but probably not greater odds than the other applicants. Please don't take this offensively, but when Princeton looks at this, there is nothing really on here that says why Princeton would benefit from having you as a student, or how you are different from all the other applicants. The UCSD thing helps, but its still not anything great. You may have a shot at Cornell, but the other Ivies, your chances are no better than anyone else's.