I am not a lover of rentals. People will disagree saying the fleet takes care of it's rentals. I say, they take care of what they find. It is what didn't completely break yet, or what the fleet didn't find, or found and fixed to sell that worries me. People who rent motor homes don't know how to drive them. They hit things all the time.
You did not mention the model of the Thor or Winnie. Knowing the specific model of each would help to provide a better opinion. As a general rule Winnebago is a much better choice than a Thor. But you heard that already X12. I personally would be looking on Craigslist for a one owner, relatively new-ish Winnebago or better, and pay for a thorough inspection.
