As I said in my post, I agree with those saying they'd fold, given the situation. However, I hope people are realizing that in the long-run, going all-in with AA here is very +EV, so if you were a pro who plays several tournaments, you should without question do it. Whether or not you're favored to win doesn't matter, by itself. If you somehow knew you were 48% to win a hand with 3 other people all-in, but you'd quadruple your average-sized chip stack, should you fold because you're not favored to win? Absolutely not. This is just a slightly different version of that scenario... although your chance to win is lesser (somewhere around 25%-30% depending on other holdings), you multiply your stack by TEN!
Again, I think folding here is totally understandable for a non-pro who greatly values the prospect of just making the money. But I'm getting the vibe by the responses, i.e. "someone is bound to catch up", or "I know I'm not favored to win", that some people don't realize that in the long run calling with AA here would be an incredibly profitable move, and every pro, barring short-term financial issues, would make this call 100% of the time.