although i have 60,000 miles on my Michelin LTX 265/75R16 load range E I believe that I will have to consider :
Bridgestone Duravis R 500
That particular tire is a heavier tire and the actual reviews for heavy duty use has placed that particular tire at the top .
You could pick up a copy of the November Consumer Reports in hard copy or at the library and gain some knowledge there .
tire rack dot com has a wealth of information available and one can do a search for the specific size to compare prices , weights , load carrying capacities , and user reviews .
become a student ; it will be worth your while.