The question is not whether you go ALL IN with AA or KK pre-flop in a tourney. If you are doing this, then you are not making as much money as you can. The power of AA and KK is such that you are already a big favorite to win the hand. Granted, these power hands (specifically, AA and KK) CAN be beaten, so you shouldn't play a family pot w/ AA! The main goal is isolating 1-3 players where you have a clear advantage. [Not counting what the flop brings.] This shifts the implied odds of already winning the hand in your favor. Going all in is silly, IMO, because in most situations, you'll only pick up the blinds.
So how to play AA and KK? Depends on position and chip count, in my opinion. Maybe a raise 4-6x BB? Maybe an all-in raise if you have a low amount of chips.
I pose another question: Say you have KK on the button, first hand of the tournament. UTG raises all-in, and there is one caller before you. What do you do? [I know what I do, because I know how I play, but I'm just wondering...]
Hope this helps somewhat.
__________________
|