For a rule of thumb on what will work good in snow, look closely at the tread.
You want lots of tiny bitey edges perpendicular to the tires spin. The very small edges and the snow that packs in the tread is what actualy give you traction.
What decreases a tires effectiveness in snow is plain flat rubber surfaces.Thats why the BFGs fail.No edges in the correct direction and lots of long flat rubber to slide on the top of the snow like a sled.

Here's what a tire engineered for snow looks like...



The more your pick has in common with this tire, the better it will perform in snow