I’ve used kumho, general, BFG, mastercraft, and Firestone. The kumho and general at tires only gave me about 30k miles. The mastercraft tires were the at2, which gave me about 50k. The BFG gave me between 65-70k miles. That’s not a typo. Nearly 70k miles on my 2006 z71. They had about 5k left on them, but I got lazy on my rotation. They were by far my favorite set of tires. They were the old style though, I don’t know how the KO2 holds up. The firestone had about 20k on them when I sold the truck, and they were about 1/2 tread. They were the p rated tire, not LT. IF I can afford it, the BFG will be my next set. If not, it’ll be the general knockoff. But I’ll say this, those BFG went everywhere I wanted to, and gave me good Highway manners too. I’ve also had good results with the original BFG MT, I’ve never ran the second or third generation tires. I loved the look of the originals, and they performed very well for me. It’s too bad they stopped making them. To me the newer styles are not as aggressive looking. The old style just had that classic mud terrain look.