I know Toyo and Nitto are affiliated, and most folks I've spoken to with the Nitto's, appear to get better wear mileage than the folks with the Toyo's. With my AT's, their use was mostly towing my 5vr, my MT's have towed very little, and since new, my truck has less than 100 miles on dirt roads, all hiway use.
I agree, lots of different factors to consider, especially driving habits. I drove semi professionally OTR for almost 16yrs, 5yrs for my Dad(International Transport), and 11yrs for Pacific Northwest Bell, almost always on Toyos, and have continued to use them on all my personal rigs. Until recently I was always satisfied with them.
You do not personally know me, but anyone who does, knows my equipment is in top shape and well maintained. I have not had good luck with the AT's, I could have run them another 10/15k(maybe) before they were completely bald. What I didn't divulge earlier, was that Les Schwab credited me, and replaced with a new set of 285/75/18 AT's, they were all out of round, went through almost 12 tires before they found four that were acceptable to them, still shook my truck and my belly:-laf, so that I was not satisfied. They(Les Schwab) then pretty much gave me the MT's. The MT's may or may not fare better, too early to judge, but it is not looking hopeful.
I like the Toyo's ride and for a heavy lug tire they are very quiet, and they look nice, here's a couple pics of both AT/MT's.