I was doing this research a month ago too, and for me it boiled down to the Winterforce and General Altimax Arctic for a very similar price. Seems safe to say the Arctic Altimax are better street snow and ice tires.
I went Winterforce because I wanted a tire that would do double duty on wet/muddy dirt roads. This based on the deep lug tread design, and user reviews praising the dirt traction. If you are planning dirt road travel in the winter or during the spring melt, seek out user reviews on the tire you're considering.
For me if the Arctics rate a 10 snow/ice, the Winterforces rate a 9, and all-seasons rate a 5 or 6, then the Winterforces are good enough given their better off-road capability.
Also, it's funny to me how widely opinions vary on the same tire. I read so many posts claiming the Winterforce was loud and squirmy on the road. Then others saying it was quieter than various well known all-seasons. I don't know! In my use so far, on dry roads, they are the same noise level and same squirminess as some generic but new all-season Mastercrafts that came with my car. On some heavy rain days, I found them quite grippy, a bit more so at speed than the all-seasons. I've read plenty of people say they use them year-round with 40k routine, which would seem to indicate the compound is not too soft. Which means longer tread life, better dirt/rock capability, and lesser ice traction.
2007 X Prem w/AWP, 5MT, Newport Blue, 150k
Last edited by dougr; 12-08-2010 at 11:52 AM.