Well, this is going to go against the grain a bit, but here is my experience (currently 4 of us- a 7 & 9 yo) for what it is worth:
-Had a Quigley, loved it, never regretted it. But only because I traded into it for cheap, and sold for a tidy profit- now cannot get back into one economically.
-'07 Dodge PW CC, awesome rig, minimal room for a CC, good power, but dismal at best MPG- almost saw double digits once ;-) But never whilst towing...
-Excursions are the bomb!! Love them, but they demand a premium, and the tailgate entry is high, especially with any lift. Decent mpg w/ 6.8, great power, but rides like a leaf sprung straight axle truck, cause it is.
-'00-'06 2500 4x4 Suburban, great alternative to the X, cheaper to get into, better on road ride (why live with the leafs??) and adequate ability for light wheeling, but perfect for dirt roads and easy access camping. The real caveat is the comfort over the X, and a tad smaller footprint. GM engines hard to beat, and love the 8.1!!
-JKU, forget it for lack of space. Loved mine, but really not up to par for long trips or required room for family of 4 camping. Power?? What power??
- LR Defender while fantastic truck, maintenance intensive, love/hate relationship, always gets you home but with concerns at times, decent room, good economy IF diesel, but power lacking. We just drove one from Belize to NC via Guatemala, and did fine, but were ready to get out after the trip, and didn't get back in for a week ;-)
-F-250/350 -great alternative especially '05 on with coils front. Improved turning radius as well. Simple a good solid workhorse, tons of room in the CC, reliable, comfortable, etc, etc
-F-150, near the same as the 250, bit more car like, good power/mpg, and good tow rig- even more room than the 250- yes, we measured them both!!
Good luck, but remember- just get out there and go!! You can always change rigs, but don't let the rig be the 'deal', let the trips be what it is about!!
Cheers