I grew up back in the 60's using RWD pickups. 1st 4x4 was in 1972. And we lived on rural gravel roads and rural two lane highways in farm country Iowa. Not the primary concern of the state road crews to clear during snow. We understood the limitations and capabilities of RWD and we did not have any major issues, even in snowy and muddy conditions. 4x4 is a realistic option, but if one uses the grey matter between their ears, RWD is equally a realistic option. The right tires, proper weight in the back, and maybe emergency traction devices for some unforeseen scenario, and you are pretty well set for all but the most severe conditions. But there is a very strong argument can be made for going with 4x4. Even then, I see a lot of 4x4's in the ditch each winter because folks don't use common sense.