Next question -- tire pressure? I keep ALL my tires at the max pressure molded into the tire sidewalls. (It's usually something like XXXX lbs @ XX psi.) The tires last longer, I get better gas mileage, and the traction is noticeably better. (Three times in the past several years, different neighbors were stuck in their driveways ... in each case, I pumped up their tires to max pressure and they were able to drive out without assistance.)
Final question -- which tire is best? It depends on where and when you'll be doing most of your motorhome driving.
I spend a lot of time "off the pavement" in all seasons. So, what's best for me probably isn't suitable for you.
In Alaska, supposedly "all season" tires are really only suitable for, at most, 3-5 months per year. Instead, experienced Alaskans run "winter" tires year around, largely due to numerous high altitude/latitude mountain passes. Yes, the tires we prefer are "noisy" but it's a minor annoyance compared to being delayed or prevented from going where we want.
I could go on but you get the idea.
