IF you look at a class C, the first thing you want to do is to try backing up into a confined area. You will soon realize you can't stick your head out the window and see what is next to you. Sometimes it is hard to judge distance, only with your mirrors.
Actual ride quality may vary, depending on what class A you are looking at, but generally speaking, the wider track in the front is going to give you a little more stability. A class A is much heavier over all. This means a much more rigid frame, which forces the suspension to handle bumps, rather than the frame flexing. OK yes it still flexes, but not as much.
I will also qualify my comments that they are assuming a class C means a van front end. A Super C (such as a Renegade) is a whole nuther ball game, and will quite often out handle and offer better ride quality than a class A.