I believe the most reliable source is insider information.
You'd better not guess, or derive your conclusion based on your limited information.
That's not rational.
Time and fund are real,
no kidding.
Get to know the interviewers, listen to their advice is much more meaningful.
I hope this helps.
I don\'t agree with the radical perspective above completely,for the interview is merely a piece of cake as long as you are excellent enough.according to your professional quality,specialized knowledge and educational background,those professors could make the decision comprehensively