AA, KK, QQ as Hole Cards are like double-edged swords. They can win you a lot of chips. And, they can lose you a whole bunch of chips also. All three fall into an 80-83 win %, give or take 3% either way. So, 77-86%. Nonetheless, since I am really talking about playing AA for maximum profit. This is what I would do.
Double edged or not, AA is a sword you have to swing, knowing full well that aces can get cracked 14-23% of the time ALL DAY LONG in a downswing. Nonetheless, in an early position, I would bet 2.5 pre-flop. In the middle or late position, I would bet 3 and 3.5 pre-flop respectively. The idea in the early position is not to scare opponents off with an all-in bet. In either the middle or a late position, I would - given no bets are on the table - do as I said above with the idea of being fairly modest to keep players in the hand.
However, from any position, given the opportunity, I would bet pre-flop, raise pre-flop, and re-raise pre-flop with absolutely no hesitation - keeping in mind that going all-in risks all the chips, so try to avoid this situation. All-in is just an unnecessary and unacceptable risk which is best avoided where possible.
So, to repeat, for myself, anyhow, my normal way of playing AA is to bet pre-flop, raise pre-flop and to re-raise pre-flop depending on the chips in the pot and in my stack. My bet is that if you do lose on this so-called monster hand, the loss is probably going to be a big one in terms of chips, so try not to nuke your own stack. Ditto big win with lots of chips if you don't get cracked.
With bets increasing around the table and across the board, it does not take long before someone probably presses the all-in button. That is when the fun really starts, and it is when many players find themselves in a position they did not really want to be in, for example, with cards facing upwards - looking across the table at two aces, said to be the best hole cards in poker.
Keep in mind at all times that AA is just a pair. It is the highest pair, but a lot of hands can beat it, like two pairs or even trip 2's. Like I said, keep one eye on your stack and the other on the community cards. If you do not like what you see on the flop, turn or river - seriously - don't think twice about folding. Stack preservation, meaning hard-core bank-role management - is probably the only good reason for folding AA.