this is diff, its a SnG, here people shove 99+ in some cases and its considered a good shove. in cash shoving 99, 1010, JJ without damn good reads its -EV right? anyway i think its totally different in play style and decision making, but AA with just one opp i dont think its a fold even if he has us covered. worst case you are 70% favourite, best case 90%.... so why fold? to get ITM? fold this and then get 200 hands like 73, 92 and sit. maybe you will get lucky and get ITM but a better card then AA you wont get so i say its a call even here. if it was 3 way all in, maybe then.... but HU i cant find a fold.