I've owned a 1982 2WD Sportsmobile (hate myself for selling it), a highly modified 1996 Ranger that I wheeled, but could still be a daily driver, and Excursion, an Expedition, and currently have a 2010 F-350. I've traveled in all of them, and they've all had their advantages depending on the type of trip I was taking. You have to realistically think about where you want to go in your travels, what you need to take along, and what you want your sleeping accommodations to be if you're camping. You also want to make sure the wife is comfortable if you want her to look forward to these trips. If you've done much offroading, you know how much a fullsize diesel weighs, and how impractical they can be as an offroad truck. Doesn't mean people don't use them for that, but they have their limits. Will you passenger's have a heart attack going across someplace like Black Bear Pass in a big Dodge diesel? LOL
Once you realistically look at where you want to go, you can hopefully pick the right vehicle. Maybe a JKU with a utility trailer for hauling things on your property, that you could also stick a tent on?