Entry level Newmar, Tiffin and Winnebago. Are they equal?

Only the Newmar has Comfort Drive and isn't laminated.

As to the American/Fleetwood reference, the salesman is correct, all the same family and the new owners of Fleetwood have done a good job by most accounts.

Having said that the other 3 have the same owners.

I don't know about the other 2 but at Newmar the same staff builds everything from the Bay Star gasser to the King Aire Diesel. Same people, same construction line, same build method.