Michelins; you get what you pay for -- More expensive and worth it. We have run Michelins on all our vehicles, since the old Michelin X radials in the late 60s. The few times we used other brands (mainly, OEM tires on new vehicles), we had tire failures or very poor treadlife.
Right now we have Michelin XPS Ribs on our 19-foot Bambi, and we don't worry about blowouts or tread separation. The tires could safely handle 75-80 mph sustained speeds, but we still drive 55-65 depending on the type of roads; because we feel safer towing at the lower speeds and get significantly better fuel economy.
We have Centramatics, although Michelins typically require very little weight to balance; they are just insurance against out-of-balance problems with the other spinning parts in the running gear. I have ridden in our Airstream at 55-65 mph for a short distance, and the ride is very similar to our 2008 Tundra. My wife leaves a napkin holder with salt and pepper grinders on the table (with a non-skid mat underneath, mainly to prevent scratching the table top), and it has never fallen over or off the table while traveling on highways.
The conversion to 16-inch wheels and XPS Ribs was relatively expensive, but it has been worth the added peace of mind, versus the constant worry about blowouts with Goodyear Marathons and (later) Maxxis tires.