Depends on how much you want to spend. A 4 inch lift will cost you much more that a 4 inch lift. You will need a SYE/ CV driveshaft to fix driveline vibes. Tires, wheels, gears the list could potentially go on and on. It is different for every jeep.
I would look at a 3 inch lift, and then possibly adding a 1 inch body lift to fit 33's. You may not even need the body lift.