"- a big bubble in an MTT (like the jump from 4th to 3rd is
usually pretty big, same w/ 3rd to 2nd. This situation
happens when two stacks of same size go all in before you
like the hand you mentioned, but keep reading."

No, that is not a good spot to fold your AA unless you aren't playing to win. Play for the win, not for the next money spot. And that is certainly a spot I would love to be in with AA.