I towed my 2012 28' Intl with a QX56 VERY happily and successfully for 2 years. If I didn't have the need for hauling a generator, two basset hounds, and all the other gear that I "needed" -- like a small gas grill, etc., I'd still have the QX. I did buy a 2014 Ram 2500 4x4 with the 6.7L Cummins diesel for more storage space and the torque that comes with the truck for long haul, Rocky mountain type Airstreaming. (Oh, and the exhaust brake as well.) The Ram is a terrific TV through and through, but the QX is a tremendously capable SUV and gets remarkable gas mileage when you tow with it.
"SilverLeaf II" 2015 30' Classic
2019 RAM 2500 Limited 4x4 CC w/6.7L Cummins
WBCCI # 3430-Unit 21