Hard to say as we just don't get the cold that you do in Siberia. My Patrol came with OME suspension when I bought it and I was not that impressed with the springs. They sagged heavily with 100,000 kms on the clock. They were also very stiff and you could feel every bump on the road.

I dont one know too much about the other two but a friend has had Tough Dog for about 3 years and is really happy with the set up.