I made my decision partially based on the opinions of independent repair shops. Everyone of them said Winnebago because they always could get the parts they needed ASAP which kept their customers happy. There's not much difference between the "best" or "worst" if it's sitting in a repair shop.
IMHO you can't go wrong with a Winnie on a WH.
2005 Itasca Suncruiser 35A WH24-8.1, UltraPower, UltraTrac, Safe-T-Plus
2007 Saturn Vue Hybrid or 18' BadaBingBBQ smoker