A year ago I was consuled, instructed and taught far more than I could remember about Motor Homes by a widow who had spent a dozen years traveling in more than one fifth-wheel and two or three motor homes, my sister.
Because of her I bought a 38' 2002 Newmar Dutch Star. She said it had "Good Bones" meaning from the chassis up this is a very solid rig, and it is. Because of it's age I was able to buy it for less than half the price of a newer, or new Dutch Star.
Understand that her experience is a decade ago and the makers you mentioned must have improved their quality, as has the rest of the market. But her basic advice is true, buy quality over prettiness.
Also, Join Good Sam with a Camper World membership, and Join Escapees RV Club.
Happy RVing.