Interesting thread...lot's of nice photos of worn out tires.
In the FWIW category, I have had BFG MT and AT's on several vehicles over the years. A few months ago I put the "new" BFG MT TA KM (not the KM2's) on my 85 4Runner. A good friend installed them and said that he couldn't believe how little weight they took to balance (of course these are only 31-10.50x15).
They are very smooth on the road, very smooth. Better than any MT that I've ever had. If I thought I needed an MT and drove a lot on the highway then I would go with them. BFG changed these tires a year or so ago so anyone who ran them before the change would have a different perspective on the tires.
I can't speak for the KM2's but they look really cool!