If anyone of the 3 players is bluffing most likely is the first allin ,then i will assume the next one something like QQ , the third one definitely AK or KK . The first one we can deduce most likely AQ or 1010. Lets pretend those are the hands. What we do?
In the case that Hero calls with AA, the best possible case would be to play against QQ, AK and AQ. In that case AA would be a > 80% favorite (the players take each other's outs). The worst case would be to play against KK, QQ and JJ, the advantage of AA would be "only" a little more than 50%. In the case of Hero actually folds AA against 3-way all-in, the best possible case would be that the opponents each hold a high pocket pair, i.e. KK, QQ and JJ, the risk of a splitpot is very low in that case and 2 players are eliminated from the tournament. In this case we would be on the safe 2nd place. The worst possible case for a fold by Hero (extremely unlikely and not appropriate in the game situation) would be if all other players hold KQs and a split pot occurs (that would be the worst lay down of the century). However, then we would only have lost the BigBlind. More realistic would be the other 3 players holding QQ against AK against AK. Here it is possible that the king makes the better pair and 2 players split the pot. If you look at the prize pool structure of the 2019
wsop Main event, 4th place gets $ 3,000,000, 3rd place $ 4,000,000, 2nd place $ 6,000,000 and 1st place 10,000,000.
Conclusion: In case of a folding AA, we can still be eliminated in 4th place in a split pot situation when all players keep their stakes, or, with a high degree of probability, in 2nd place if the 3-way all-in is not a split pot. In the case of a call, Hero is in the worst case an approx. 53% favorite, in the best case an approx. 82% favorite. About the prize money: In the best case scenario, if we call, we will win a 4-way all-in and win $ 10,000,000. I think we should actually call with pocket aces. On the other hand a fold is possible because of ICM and would lead to endless fame (in any case) :smile: