Re: Why do you have a Liberty and not a Xterra?
Oh, I'll be the bad guy...
My father had a Liberty for a while. I almost bought one too. The V-6 wasn't impressive, and his suffered from major road drift. Even after new tires, and a couple of front end alignment checks, it wouldn't track on the hwy without constant input. An independent review noted the same issue. Don't know if it's still an issue, or just the year he had his.
I ultimately bought an Xterra. The comment about it being underpowered is a joke. Maybe on prior years, but in 2005, they put in a monster 4.0L engine. This engine pumps out 265 HP, 284 ft-lbs of torque. Put your foot in it, it sounds like a race car, and dusts most everything around, including my 2006 Jeep Unlimited.
I wouldn't refer to the Xterra engine as "peppy". It's got more guts than most V-8s I've ever owned. Drive one yourself, you'll see what I mean. That's the main reason it keeps getting awards.
I like my current Jeep too, and my previous 04 Sahara, so I'm not a brand snob. Drive a Liberty, Drive an Xterra. See what you like better. Both have things going for them.