Seriously, for the average person there ain't a dimes worth of difference between Chevy or Ford. They get in and drive, get it serviced (or service it themselves, etc..). I have a buddy who's class A is on a Ford chassis and his motorhome is pretty great. The only warning would be some early years of the V-10 have issues involving coolant leaks and EGR valves, etc.. If you found of of those that had already been repaired it would give good service. I would pay more attention to service history and condition than to Ford or Chevy label on the chassis.
