I have a 2 wheel drive dually and drove up to the ski resorts last year. I found I had no problems what so ever. I do have chains on board just in case but yet have got them out of the bag. I have had no big issues with sliding around on the ice and compact snow. I do have a good traction tread on the tires, snow/mud type. as with driving in any adverse conditions, ease on the throttle and brakes along with a safe speed is required. do I worry about driving it during the winter? no, no worries...if I were to worry id be staying at home for a good 4 months or so out of the year and that is not an option. lol.
by the way, ive driven my old camper on the old truck during the winter and never had issues then also. that was a lighter camper and a 3/4 ton 2 wheel drive.