I have a set of SST MAXX ready to go on a 3500. This will be my first set of Cooper Tires. Michelin LT tires are not very popular out here. It surprises me that people are willing to pay more for them. You can barely give them away here, especially the AT2. Maybe if you never had to drive in snow and ice, and mud they may work. I am not sure how they are even four season rated. Traction is everything, and for me supercedes mileage by a long shot as far as priority in tires goes. The roads are snow covered and icy for up to 6 months at a time here. That alone removes a Michelin tire from contention, and that is not even taking off road performance into account. A 70K tire doesn't do you any good when you pickup is on its roof.