I owned, and used, five(5) pre-owned gas-engined motorhomes PRIOR to special-ordering my diesel-pusher Dutch Star. BUT, I knew from the start that there was NO gas motorhome that would satisfy my basic knowledge of RV design. The problem was, and still is, that I always insisted on paying cash for any motorized vehicle that I bought (including aircraft). This simply means that I've never bought a top shelf vehicle. I always bought a compromise vehicle.
I have a lot of experience and education, both of which have significantly enhanced my intuition. Yes, I believe you can enhance your initial intuition (requires explanation, I know).
Back to the subject: The Spartan chassis under my Dutch Star has some excellent design features, such as big tires, a 276 inch long wheelbase, a big rear-mounted torky engine with a big side radiator and big hydraulic-motored fan, a great IFS suspension with excellent steering system (with dampers), and a trick-design suspension with OPTIMUM spring rate RATIO whether empty or loaded.
I could go on and on, but I'll just say that while the comfort, the directional stability, and the handling are GREAT,....my Dutch Star is far from perfect. HOWEVER, there is no gas-engine motorhome that'll match it.