Against a nit: fold

Against a standard op: usually 4-bet. Sometimes call and raise some flops villain likely missed.

Against a light 3-better; same as above but I 4-bet even more (like 90%). If you really know villain 3bets and overvalues high aces and kings, I guess you should call more and extract when you both hit. I usually don't have that precise reads and take the 'safer' way of 4betting. (and calling a shove, of course)