I ran 2wd everything until 97 except wifes Explorer (89-99), grew up near the Poconos. REAL snow tires, and 5 concrete blocks behind the wheel wells took me any where I wanted to go in a reg cab whole bed pickup. Moved in 97 to WPA, I got the first ex cab 4wd F150 with the short (6foot) bed. Never had a problem with decent M+S tires on it. Stepped up to the F250 whole bed ex cab in 09. It had Continental highway tires on it. First snow it went in a ditch in 4wd Hi. By that afternoon it was wearing Coopers, no problems after that. New one is a short bed (6"9") ex cab F250. It is a lot lighter with the AL body and I can feel it. We will see how it does.
Basically a PU is made to put stuff in the back, so making it heavy in the rear is a bad idea. The PU/SUV DOT limousine crew cab versions with minimal hauling area will be better in snow like most SUV's. My daughters outbacks were a lot of fun in the snow, as long as there wasnt much. I had an explorer that was a freaking tank in the snow. I was running that during the blizzard of 93 and blew through drifts that were as big as the car. FYI, if you do that, immediately clean the snow from in front of the radiator.
Yes you see a lot of PU's in the ditch, you also see outbacks, Jeeps, and every other type of vehicle that people think they can go like hell in in any condition. 4WD does NOT mean 4W stop.