Originally Posted by Joey D
I run 215 winter tires and I haven't had any problems getting through the snow at all. I prefer something a tad wider because I'm on the freeway quite a bit and I don't like how unstable skinny tires feel.
The instability you're feeling probably has more to do with the softer tread compounds and tire siping than tread width. Taller sidewalls (especially one ply ones) will often add to the feeling. It's the price you pay for optimum snow and ice grip.