Saw this over on Pickuptrucks.com.
They tested dedicated snow tires vs all season vs all terrain vs mud
http://news.pickuptrucks.com/2016/03/winter-tire-test-some-treads-are-better-than-others.html
Tires tested:
Goodyear Wrangler Fortitude HT OWL SL (P-metric)
Bridgestone Blizzak DM-V2 SL (P-metric)
Goodyear Ultra Grip Ice WRT LT (E load range)
BFGoodrich All-Terrain T/A KO2 RWL LT (C load range)
Firestone Destination MT LT (E load range)
Can you guess which one wins?