you should call EVERY time pre-flop with pocket Aces, especially early in a tourney.

The only time it would be correct to fold would be a situation where you are one person away from finishing in the money and there are 2 people all in in front of you, or a similar situation like that.

But this being the first hand, especially if you feel that you are a good poker player even against 3 hands I am still a 56% favorite (especially considering with people going all in preflop they either have AKs or KK or a lower pair which greatly improves your odds.) and a 56% favorite and the chance to have 4x the amount of starting chips, you could easily use your chips to your advantage.

Personally, I think all you can hope for while GAMBLING and playing poker is to get your money in while you have the best hand... and there is no better situation than this. If my Aces got busted first hand of the WSOP, of course I'd be upset, but I would at least know that I had made the correct move.

~Kyle.