Sorry to disagree.
I see a lot of votes for the BFG AT's. I was not happy with them in snow, I thought they <img src="/forums/images/graemlins/ignore.gif" alt="" />
To find something differant...
I used two sources for info, one was the consumer reports tests where they compared AT tires under differant conditions including snow, ice dry pavement and tested them for rolling resistance.
While they didnt test the AT they did test the rugged trail T/A's and they finished second to last.
Tops for snow were
Kumho Road Venture AS KL78 was the top tire for snow, bridgstone Dueler A/T Revo was good (but pricy), Nitto Terra Grappler rates highly for snow as well.
BFG long trail was the second to the worst tire of the all seasons test for snow traction but great for tread life ( it might be that BFG compunds are just a bit too hard for cold weather). I think BFG is running on reputation and there are better tires. Off road the BFG's are very tough.
Also read the reviews on tire rack. While not scientific you can spot trends if something is really good or really bad.
Some love them , some hate them... . Also not all of the BFG AT's get a snow rating, I think the tires just makes the rating with a couple of sizes not passing.
Thats what I found.
IMHO there are better choices than what I got for snow, I went for max wet weather performance with out too much of a compromise elsewhere.
Also from the Consumer reports test the Michelin LTX M/S rates very well. It's an all season, not sure what sizes it comes in either.
Kevin