I got the RC 2.5" lift with shock extensions. The ride quality is better than stock IMO. However, I haven't really been off-road since I put the lift on yet so can't really tell you anything about that.
'11 Silver JK
2.5" RC Lift-315/75/16 Duratracs on MB wheels-1.25" TF Body Lift-various other odds & ends
Rancho 2 w/9k for 300 including mail in rebate would be my choice. Adjustable shock valving, 2 inch front coils and rear spacers. U could also upgrade later on to synergy coils or bds 2 inch coils. Possibilities are endless