Artic Fox is in a class by themselves in the shorter fifth wheel category. I doubt you’ll find a better built unit.
Grand Design USE to be a good build but the QC has dropped off significantly especially in the last two years. It might be due to the tremendous increase in sales all manufacturers are experiencing and they can’t keep up and it may be due to a drop in QC after they sold out to Winnebago and now are answering to another master. In any event GD is not the same company it was just 2 years ago.