I think AK is definately one of those hands you like to raise with but should be hesitant to call with. At the start of a tournament when players are generally playing looser than they might normally play, trying to push people out of the hand preflop with AK isnt going to be a great option, but later on when everyone is playing tighter trying to squeeze their way into the money then AK becomes a great hand for me. If you can use AK coupled with a chip advantage over the shorties you will do well.
Ie. I'm in a nice spot with 60,000 chips, I look down at an AK, now the blinds are at 2,500/5,000. The guy in the small blind has 22,000 and the guy in the big blind has 12,000. Now you don't want to raise allin... that would be wasteful, instead you raise
12,000, Any good player without cards should stay right away from your bet, the small
blind isn't going to want to waste over half his stack unless he picks up something
pretty decent so he folds, and now you've got the big blind jammed in a beautiful spot.
Either he has to make an allin call, or fold and he can sit in for another 6 or 7 hands maybe before being ante'd allin.