OK, here's the rundown of AA's equity vs a number of random hands (and note that I even rounded down):
2-handed: 85% - +0.85 EV
3-handed: 73% - +1.46 EV
4-handed: 63% - +1.89 EV
5-handed: 55% - +2.20 EV
6-handed: 49% - +2.45 EV
7-handed: 43% - +2.58 EV
8-handed: 38% - +2.66 EV
9-handed: 34% - +2.72 EV
10-handed: 31% - +2.79 EV
That means that, with more people in the pot, the odds of you winning the hand get smaller, but because the pot is bigger, you're expected to win MORE in the long run with more opponents.
The correct answer in this thread is:
Fold AA preflop on the bubble in satellites with multiple opponents all-in, or when the pay-jumps are significant and several people went all-in before you. In these cases the ICM becomes more important than the cEV.
In all other cases, especially cash games: folding AA preflop is the single DUMBEST thing you can do.
Anyone who disagrees with this does not understand basic probability and has no business at a poker table.