I've seen more people go broke on AK than any other hand, mainly because they think it's a made hand like AA or KK. Even after it misses on the flop, they'll hang in there praying to make a pair.
AK vs. KK is a 3 outer though. Kinda like bringing a knife to a gunfight.
If the flop is Q, J, 10, you're sitting pretty. Or if it's suited and you hit your flush on the flop, you're sitting pretty. If someone raises over 10X the BB and you think they're holding KK when you have A,K. . . it's a great play to fold that sucker. It's nicknamed Big Slick because it slips so easily into the muck.
Don't get me wrong, AK is a great hand, I'll play it every time, at least to the flop, but if it misses the flop, you need to toss it IMMEDIATELY.