It depends on the stage of the MTT. During the early (rounds 1-4) going all in first makes little sense even with AA. Likewise, calling someone else's all in early is nigh onto insane no matter what you have. Why risk all your chips? In the later rounds there are good reasons for multiple all ins. For instance if the 1st all in is a desperate short stack and the second is minimally bigger why not call with favorable pot odds--or better yet, raise all in to chase out the vultures. Just remember, once someone's all in your implied odds are reduced because there's nothing further to win from your opponent.
In a satellite (which didn't go beyond round two) I was a mega-stack and two short stacks went all in. I called with A-10 os, normally a terrible play. They showed KK and JJ. I flopped an Ace. Adios to two players. If I had lost one would have been eliminated and the other would still have been way behind. Other than those sorts of situations I consider a third all in to be an overcall like any other--ill advised in most circumstances simply because the mathematical probability of winning is seldom much over 1/3.
If you're a desperate short stack, of course, it's heaven to triple when two callers match your all in, but it's essential to be the FIRSTall in. That's appropriate, but calling...I don't think so. I can't remember ever winning when I pushed my baby stack in vs. two all in's. One or the other had a very strong hand.
T-Rex86
