When I go to shows, I feel like the fifth wheels have more living room in them. The cockpit in the front of the class A takes up space and it is not very usable. I am not sure about storage room, however. But RVs with opposing slides are very roomy, whether you get a class A or a fifth wheel. I wouldn't think the space would be of prime consideration if you were trying to decide between a class A and a fifth wheel. If I was gong to spend a long time in one place, I would probably go with a fifth wheel. Since I move around a lot when I travel with the RV, I like the class A.