We used to tow with a Dodge Grand Caravan, and I must say I think it "felt" better to me than towing with the Jeep - probably due to it's lower center of gravity and longer wheelbase. That said, we always traveled light, no water, no extraneous 'stuff' and only in the flatish area of Michigan and Ontario. If I were going to be towing with it today though, I would be very hesitant to tow "cross country and through the mountains" not only for the very important safety reasons of stopping on grades, etc. but also because of the wear and tear on the vehicle. I know even in flatish Ontario there are a couple of long grades near Kitchner that I had to downshift for, and even in the Jeep I had to turn off overdrive to get up them at a steady 60mph without the engine/tranny laboring. So......yes, you probably CAN, but I'm not sure _I_ would.
Good luck with whatever you decide.