Go with the rubicon Express kit..
The Rancho AND the Skyjacker kits are NOT a full 3", they are actually only about 2.5" or so, AND because the control arms are boxed and have urethane bushings, they place alot of stress on the factory brackets.
I you are not going to well it very much and want a nice cushy ride, get the RE 3.5" Superride kit, it uses factory rubber bushings in the all the arms and is a great kit.
If you want something with a little more articulation, get the RE 3.5" Superflex kit, it comes with swaybar disconnects (not very good discos though, definitely upgrade to the JKS style) The arms in the superflex kit have a spherical bearing assembly in one side that allows the arms to twist, freeing up alot of suspension articulation.
If you want to go higher than that, you can get the Rubicon express 4.5" kit, which comes with 8 arms, front trackbar, all the fixins, just depends on how big you want to go.
For a GREAT all around kit, I would go with the RE 3.5" superflex kit, JKS disconnects, Adjustable front trackbar, then put on a nice set of shocks and you are set for about anything you want
Rumor has it that there is a guy around that can get you a great deal on Rubicon express lifts.. P/M me for details