AQ with a big stack
I'm always unsure about this situation: There are times at a one-table SNG where it will be down to around four players, and I'll be in the chip lead with say 5k (started with 1.5). At that point when the blinds get really high, players with shorter stacks go all-in pre-flop to keep pace and steal blinds.
My question is when I have that large stack and a player has gone all-in, and I have AQ. I'm positive I have the best hand, and if not I'm going up against a small pair, but if I call someone with say 1.3k chips and lose, I'm back with the rest of the pack. I've made this call a few times, and it has gone both ways, but I want to know what people think is the best theory. Should I generally fold because I don't need to be in a coin flip situation with a large chip lead, or should I call knowing the I most likely have the best hand?