I have 315/75R16 (35x12.5R16) Pro Comp Mud Terrains. I really like them. They have good looks (in my opinion), ride nice and quiet, good traction, etc. I like the fact that they have siping (found on very few other mudders). They ride nicer than my friends Goodyear AT's. They are a bit nosier, but almost unnoticeable in the cab. Overall, I have been very impressed. I have not had them long enough to talk about mileage on a set, but they are holding up good so far. This is the truck they are on.
<!-- BBCode u1 Start -->http://www.pavementsucks.com/gallery/viewride.cgi?ride_id=189" TARGET="_blank<!-- BBCode u1 End -->