Quote Originally Posted by cryptyk
Enough people will go all-in against your KK with QQ, JJ, AKs, AK and even AQs that pushing with KK is profitable every time (preflop).
Obviously it depends on game level. I've played 10, 20 and 50NL at Prima so far. At 10 and 20 I happily go all-in. Not at 50 anymore though.