I gather you are looking exclusively at new, gas chassis motorhomes? The Safari is the higher ranked brand among those you have selected, followed by Winnebago. We have heard reports of quality complaints from Gulfstream owners, but like most brands thee are many happy owners as well. Hard to judge without a large statistical sample, though.
I strongly recommend you consider buying a used motorhome, gas or diesel. You will get much, much, more value for your money and there are many, many excellent, extremely lightly used, motorhomes available in your price range. Buying used, you avoid the horrendous first year depreciation (upwards of 40%) and you get a chance to familairize yourself with motorhomes at much lower cost. If you were buying a new house, would you insist on building a new one or would you consider a "pre-loved" home? A motorome purchase is more like buying a house than a car and new is not a big advantage. In some ways, new can even be a disadvanage, in that you have to take the new "house" through the shakedown perod of findng and fixing he inevitable flaws.
