IMO, all terrain tires with the mountain snowflake don't mean much. I have a set of BFG AT T/A KO (with mountain snowflake) that I bought 6-7 years ago....hoping that they would do the job of a year round tire since I don't put much mileage (10,000 km/year). Got stuck 10 times one winter on my RWD with 250+ pound sand bags. After two winters with the BFG, I got a set of studded winter tires at half the price of the AT's....cheapest set that I could find....were much better in winter conditions than the AT's.
BFG AT's don't have the sipes like a true winter tire. Also, it's rubber compound is like an all season tire....not soft like winter tires.
The only tires that I trust in winter are true winter tires like General Altimax Arctic and the like. All terrains like BFG are good only in spring/summer/fall.
2010 Ford Ranger FX4
Armaguard sprayed on bed liner
Truxedo Low Pro QT tonneau cover
Studded General Altimax Arctic P245/75-16 winter tires on black steelies