Any kiss where the couple kisses like people in an actual relationship is good with me. Anytime there is a stiff, emotionless, lips pressed together, arms dangling at sides kiss I just roll my eyes. I'd rather they leave kisses like that out entirely because it ruins the chemistry for me.
Favorite kisses that come to mind are the Cruel City kiss, all of the kisses in Coffee Prince, and the infamous Cola kiss in Lie to Me.