Hey Matt! I have run BFG KM and Cooper STT tires on my 80 recently. Prior to that I ran Interco Trxus Muds. The Interco tires do everything extremely well except for tread wear. They are pretty much done at around 30K. The KMs do great off road, but they have to be siped to work on the road in the winter. And they have terrible lateral traction for snow wheeling. I really like the Coopers I have on now, although I haven't driven them in the snow yet.
I have the Duratracs on one of my 4Runners and they are great. They have taken everything I've thrown at them, but I haven't run them in the snow yet either. I haven't read a bad review on either the Duratracs or STTs as far as winter driving, so I would think either of these would be great. The MTRs are just too damn pricey for me.
67 FJ40 LC Tan
94 RN101 PU Pewter
95 FZJ80 LC Red
99 UZJ100 LC Black
00 VZN185 4Runner Highlander Jade
00 VZN185 4Runner SR5 Desert Dune