I've only owned 1 Winnebago, it was new and it was pretty good in terms of what we expected in the coach amenities and we liked the simple functional layout. The chassis was the part we didn't like. It wasn't because of the quality of the motorhome or chassis, but more that we simply bought the wrong chassis type/model under the coach we liked.
We have another new Winnebago on order, and should be picking it up in a week or so. We're hoping the coach amenities and the different type of chassis will be the answer to our overall requirements.
So, Winnebago for us. No question.
We looked at Thor stuff that was similar, but there as always something that wasn't quite right with them, so we turned towards Winnebago in the end.
