I would throw Entegra into the ring if I were you. We owned a tiffin they may have had great warrenty in the past but are definitely slipping now. I can not coment on newmar froom an owners perspective. Our Entegra has wonderful fit and finish(in our tiffin if someone had a campfire 6 sites away we could smell it inside with the Entegra that is not a problem)
a 2 year warranty and 24/7 customer support phone numbers for owners.