If you do a search for RRO and vibration, you'll find several people have had problems, going back several years. IMO, the reason is the RRO spacer is too tall (1 3/4"), which can allow the drivers side inner CV joint angle past it's maximum of 23 degrees causing it to bind, hence the vibration.
One member added sub-frame spacers to get rid of the vibration problem, but because sub-frame spacers off-set the lift spacers, clearance gained from the spacers is lost.
The perfomex leveling kit (doesn't come with alignment hardware) is similar to the RRO only in that it is a spacer that mounts to the top of the strut using what are essentially ATV wheel spacers. The spacer is only about an inch and won't expose the CV axle to as high an angle as the RRO, hence the lack of vibration issues, but it will not provide as much lift as the RRO. IMO it's also fairly expensive (about $300 USD) for what is provided considering the lack of alignment hardware that will have to be purchased separately.
Stu's coils lift kit (alignment hardware provided) provide lift due to a different spring rate which doesn't allow the spring to compress as far under the weight of the vehicle compared to stock. The trade off is a firmer ride (which can be helpful off-road) along with less chance of bottoming out, but no risk to the CV joints as the range of travel with respect to the inner CV joints is the same as stock. With Stu's you can also disconnect your sway bars for better articulation and control off-road; again without worrying about maxing out the CV joints.
I've run Stu's for a few years now without issues.
I'm also currently experimenting using Stu's with a 1" spacer lift I made myself, and so far the results are good.
http://www.jeeppatriot.com/forum/16...spension-tires/330426-diy-spacer-lift-kit-w-stucoils-installed.html#post1822018
I have about 11" of clearance under the lowest part of the front skid plate, and no vibration. I'm running 29" tires.
There's another approach from Rough Country that combines a coil spring spacer (provides lift in a similar way to Stu's), along with a small spacer lift in front and custom control arms in back. IMO this lift kit looks like it should work well, but it's newer and I haven't seen a lot of feedback on it yet.
So, going back to my other response, if you want a complete lift kit off the shelf that's tried and true, and not have any worries about vibration, alignment, cv joints, etc. (with the possibility of adding a spacer for more lift) then IMO right now I'd say Stu's would be a good safe bet.