I know exactly what you mean. I had one too many close calls driving in the winter time and I drive very safe when there's snow or black ice. I don't mind getting stuck since I can usually get out of those with a little bit of work. But not being able to control the car properly and getting into an accident is pretty bad.It's not really about getting stuck or not since that one is usually not a big problem. Its more about being able to stop safely and also maintaining grip while cornering. Since both of those can turn into a dangerous situation pretty quickly.
Same stock rim, just meant a different tire size.when you say wheel are you referring to just the rim, the tire, or both? i wouldnt recommend going with a rim size smaller than the stock size. however going with a smaller tire is better for winter. the smaller/narrower the tire is the easier it will grip in snow.
In that case, its perfectly fine to go with smaller tire. Just make sure its not too small or you might have clearance issues especially if its deep snow. Don't go with anything more than 10mm smaller sidewall or width on the new tire.Same stock rim, just meant a different tire size.