I'd look at it this way, if they invite you, you're past the first stage. After that, the interview will make or break (or waitlist... :-/ ) you. If you are invited, crush the interview, and you're in.[/quote]
Ok i was under the impression that even if your interview is positive then they might go back and look at all the application material and if you are pitted against someone who had a good interview but has like better rec, essays or gmat/gpa higher than you then you'll be dinged anyway irrespective of the interview.