Dually does just fine in the snow with good aggressive A/T tires and someone at the wheel with snow driving experience. Loaded with camper it's an unstoppable tank, unloaded it's so so but completely functional. We live in Oregon and drive ours back and forth over the cascades all winter, bought it specifically for skiing and snowboarding. Rig is a 17 F-350 CC DRW Diesel platinum with 35" Goodyears, airbags, and stableloads. Camper is an 18 Lance 975, we are 5k-5500lbs loaded and ready to hit the road
I went with ford because it had the highest rated payload at the time of purchase. For the most part I love it, Power and handling are absolutely amazing, creature comforts are top notch. It has had a number of little electrical issues though that have been taken care of under warranty. Nothing more than a small hassle as the local ford dealership is great, but it remains to be seen how things play out once the warranty expires.