i'm here to say that I swapped out the Michelin LTX AT2's in LT275/70R18 on my truck within a month of buying it. I put on BFG AT's and only got 45000km's on out them. I run them as a dedicated summer/towing tire as I run duratrac's with studs in the winter. I felt like they wore out very quickly but they did perform well. I'm really torn on what I'm going to replace them with but I've got 6 months to review, research and decide.
I'm leaning towards one of these right now ( keeping in mind that I do want my truck to be able to do some offroad as i'm often on construction sites and go to fishing holes)
-Toyo Open Country AT2 (ton's of positive reviews online, somewhat noisy though)
-Goodyear Wrangler AT Adventure (I've had good luck with long service from goodyears)
-Nitto Exo Grappler (great ratings, tough construction and solid sidewall)
-Cooper ST Maxx
if they are for on road only - these are well rated
-Toyo Open Country H/T Tuff Duty
-Nitto Dura Grappler
-Cooper Discoverer AW