It sounds like you're not going to tow very often. You might consider buying a regular passenger vehicle (such as a minivan) and then renting a big SUV for the camping trips. You'd save a lot on gas, the purchase price will be lower for a minivan than for a big SUV, and you'd avoid the problems (such as safety problems like rollover) that are common to SUVs.
Suggest you go to library and look at April issues of Consumer Reports, which will give you brief reviews of almost all passenger vehicles on the US market, reliability ratings, and references to full reviews in CR. Also look at the latest issue of CR for the index at the back to see if there are any reviews since April that could be useful to you.
But overall, if you only need an SUV for occasional use, I suggest you buy a vehicle (such as a minivan) that will haul people, groceries, etc. (which is what I assume you need to do most of the time), and then rent a big SUV only when you need it. Then you won't have to drag the big SUV around all the time and you'll avoid the typical SUV hassles.