Over the years I've run the following on my 06 2500 Duramax in a 33" E-rated on 17" wheels, towed a 38' 5er till 2017:
original Toyo Open Country A/T - excellent tire, got ~55k miles out of them.
Hankook DynaPro A/T - worst tire I've ever run, horrible balancing, softest sidewall ever, super sketchy towing, had them removed after a week.
original Nitto Terra Grappler A/T - best tire to date, took almost no weight, ran smooth and true the whole time, these replaced the Hankooks, got ~65k miles out of them.
BFG A/T KO2 - not great, couldn't get to balance for shiat and noticeably drug the truck down, Discount replaced them after 2 weeks.
Cooper Discoverer ATP - ok tire initially but started feathering within 15k miles, these replaced the BFGs, ran them for about 45k miles then gave them to my brother who is still running them on his 1500 Silverado.
Toyo Open Country A/T3 - good tire but have pretty piss poor wet traction if I'm honest. Have ~15k miles on them so far and they're showing some wear, probably would not buy again.