I drive 3 to 4 thousand miles a year. I am replacing 5 year old Michelin XZE 255/70/22.5. The Winn. D.P. calls for 255/80/22.5. 80s are not as easy to replace on the road 70s run fine. Looking at HER...
I went with Toyos's a couple years ago (2300 for half a dozen)
From all I have been able to find out the Toyo's do not have the tread life of the Michelin (3500 for just the tires with the FMCA discount and I'd have to pay to mount 'em about another 300 bucks) but on a motor home.. The tires will age out long before they wear out.