4WD/AWD for snow.
The reason why you may see more AWD stuck is that there are more AWD vehicles in the snow.
Even with summer tires, an AWD vehicle will get you going and can alleviate some wear-and-tire on the tires due to conditions (meaning better traction, not less wear). In addition, a lot of getting stuck is the ability to get going and if you have RWD, you have simply cut your ability to go by one-half.
Living in snow conditions (I have 18" in my front yard, and am on a residential street that can see a plow at 10P and then at 10A, meaning 1-2' of snow during storms in that time period) and understand the need for being able to not just get out of your driveway, but down a residential street to a main artery. When it's really bad, we put on snow chains on our 4WD vehicles (due to icy conditions beneath).
We see tons of tourists coming up, not prepared, stuck on the side of the road. Last major accident involved (US50) involved a Subura (AWD) in a head on with a Suburban, and that was simply further up from the cattle truck (18 wheeler) that jacknifed and had cows wandering the highway.
Point is with AWD, you can take the side road to bypass the closure on the highway (instead of being stuck for 4 hours) and can avoid the person crossing over a two-lane highway coming right at you.
It'll also increase the resale value, as those who may be in the market could prefer the AWD package as well, for a variety of reasons.