Hey Rob
Any long arm kit will give you a better ride on, and off road. The simpler ones that use a 4 link (2 upper and 2 lower control arms) will give you that better than factory ride lifted. But you will loose some extreme flexibility as with some that triangulate the axle so you don't have to run a pan hard bar.
Each kit has its pros, and cons. As with people here each one has manufacture of choice and hater's of other MFG's.
Your best bet is to find a local jeep club and see what lifts they are running and do a ride in their rigs. Personally I am a Tera-flex fan with their simple long arm kit, because my ride is still my daily driver and I have never found another lifted jeep that rides smoother (going to start an argument with that statement).