Quote Originally Posted by Rabid Dog
Just lost $30 when I called an all in with KK. The all in had AK so I had him beat pre flop, he just hit an Ace on the turn.
Yeah this is more of a bad beat, you're the 70% favorite here. In general if you can put your opp on AA/KK/QQ/AK to push all-in preflop, calling with KK is +EV. Very important to note is that AK is dealt 32 ways, while AA/KK/QQ 12 ways.

So, ignoring KK vs KK:

12/56 * 18% + 12/56 * 82% + 32/56 * 70%= 61,5% to win.

According to Poker Tracker KK is my 4th winningest hand. It goes AA, TT, QQ, KK. I checked JJ and its a huge looser for me.
I don't have PT but from the top of my head, KK/QQ are my biggest winners over the last 2k hands. AK has been good to me too, probably third. AA is total break-even since I got it ONCE in 2k hands and it ended up in an AA vs AA stalemate.