It's interesting that so many good players either lose money or do not win optimally with AK, suited or otherwise. This should also extend to AQ and AJ as well. I wrote an article on my blog a few months back on "The Dangers of AK."
It really tends to hit home, and while it's hard to lay these down, once you see truth in print (just as TW saw with his PT database), it makes those laydowns that much easier.
That being said, I still feel that playing Ace-big hands are a major leak in my game.
Remember, AK=Anna Kournikova, sure you'd do her, but she ain't gonna win you a damn thing without help.