"I am excavating contractor and have always gone with biggest wheels possible. Problem I have is most 32 footers are 19.5 rubber (but is my preferred size for coach. Or the 35’s with the 22.5"
Of course the larger wheel/tire combinations are more money than the 19.5" but IMO, you'll never regret the increased load capacity and wider choice of serious truck tires available in the 22.5" range.
Class A gassers in the 35' range with 19.5" wheels are always going to be close, if not above max GVWR with minimal cargo and full fluids, especially with multiple slides. Even with the shorter chassis Class A F53, the 22.5 aluminum wheels are a factory option, it's just a fairly expensive option that most buyers pass on.
Chum lee