Quote Originally Posted by Fnord
I play far too aggressivly to fold kings pre-flop without a sick read AND deep money.
This is a very good point. How you play your big hands is highly-dependent on how you play all around. If you only 3-bet QQ+ and sometimes AK and you are up against a good opponent, then his 4-bet is almost certainly almost only AA with some KK mixed in. If you 3-bet lightly, though, and even 4-bet bluff on occasion, then KK becomes an easy shove.

Just make sure that you play your big hands in a way that is maximally profitable taking into consideration the way you play all your hands.