I'm partial to Jayco because I own one. It has not given me any real problems and Jayco even came through for me when my black tank ruptured out of warranty. Whether I caused the rupture or it was a faulty tank I'll never know, but they did send me a new tank which I installed myself.
You may get a lot of replies for and against each model. Just remember that aside from the actual house structure and maybe the frame and axles, all the trailers use the same parts from the same manufacturers. So a failed refrigerator, stove top, AC unit, converter/Charger, light fixtures, holding tanks, water pump, water heater, furnace etc, the manufacturers all use the same parts from outside vendors.