I spent 20 years in the tractor trailer world. We were very picky about which tires to run on the steering axle. I always ran Sumitomo on the steering axle and nothing else. In my opinion these are better than any Michelin tire and has a much better price. The tire has a much more substantial sidewall where the Michelins have a much lighter more flexible sidewall and tire ear was never an issue . We have a 40' Prevost and I'm shopping for tires if Sumitomo had a 315 80R22.5 in a steering tread that's what I'd buy, but they don't.
We have a commercial bus outfit near here that is part of the Greyhound system. They are running Firestone FS400s. I just don't have anything good to say about Firestone but I'm also old enough to remember the Firestone 500 poppers and the 721s that followed from the late 70s and the Firestones are within $10 0f Michelins price.