Best family boondocking rigs?

I doubt any fifth wheel is going to do that well as a real boon docking RV. Meaning driving down rutted dirt roads and thru creeks and mud. On an improved dirt road, one that's graded and fairly flat then maybe, but everything inside would be given a real vibration test. I can speak from experience on this since we inadvertently drove down 50 miles or more of that type of road in the Mohave with our Titanium. From I-15 to Hwy 395 without touching pavement. That included 10 miles or so of the the first type--rutted and muddy road in the middle. When we got into the 5ver a lot of stuff was on the floor with quite a bit of breakage.

I suspect a toy hauler would be worse.