The Winterforce is probably a decent choice for snow but not so much on ice unless you get it studded. My Toyo Observe G-02 Plus were rated 4.0 and I didn't like them. The Bridgestone Blizzak is rated 4.1. I think the problem is they rate the winter tires the same way as summer tires. So a winter tire can get great wet and dry weather handling and earn major points there, while having winter traction just barely better than all-season tires.
Also, I hear nothing but good things about the Continental ExtremeWinterContact. Good on ice, snow, dry, wet, anywhere.