I researched tires extensively when I replaced them on our Roadtrek 210P. I put back on the same tire I was replacing: Bridgestone V Steel. It seems the wall stiffness is very important on these vans chassis motorhomes. You want a still sidewall. I agree with overbrook. I have read a lot over the years about various tires and problems with tires on Class B rigs and all I can say that eight years with two sets of Bridgestones and I have not one single complaint to voice.
Paul