2007 Nissan Xterra rear suspension question?

Hey, I'm looking at a newer vehicle and the ones I've come down to are the 2006 Jeep Grand Cherokee and the 2007 Nissan Xterra X. Both are great vehicles but I would like to find out some information on the rear suspension on the 2007 Xterre. I've seen some posts about it makes some noise or even sends vibration through to the cab because of the bushings used, is this true to some extent or just people being to picky that were used to driving a car or something. I'm leaning toward the Xterra since it has that good V6 4.0L with a higher towing rating at 5000lbs as opposed to the V6 Jeep of 3500lbs. Are there any major problem that are common to the 2007 Xterra that anybody is aware of.