Our previous motorhome was a 2007 Four Winds 34H super C on the Chevy Kodiak 5500 chassis. We currently have a 2012 Fleetwood 40G class A diesel. These are both similar floor plans with bunk beds.
Price wise I think the Jayco would be in between these two. When we got the first motorhome, price wise it was about the same as a class A gas with the same floorplan. So, that wasn't too much of a decision. The super C could tow 6500 lbs. And we had a 5200 lb. Dodge Durango to tow. At this length, unless you specifically want to use the front seats while stopped, there isn't much difference between the super C and class A gas of the same length.
Now, when we looked at upgrading, the Jayco is getting close to the same length as our class A. But, even though we don't use the front seats when stopped, there is still much more interior and exterior space in the class A. Also, ours can tow 10,000 lbs.
I did many suspension upgrades to the Chevy Kodiaks which were needed on this chassis. But in the end, the Four Winds was easier to drive, and handled the curve in the mountains better and it did also kept it's speed up better going up hills. But, of course this depends on the specific models your are looking at. The super C had the Chevy Duramax and our Fleetwood has the Cummins ISC 8.3. Basically, then Fleetwood has about 50% more power and 50% more weight.
The class A definitely rides better with it's air suspension.
While driving the overhang of a class C is nice to shield the sun and while stopped it doesn't heat up as much in the sun either. But the view is certainly better in the class A.
They also both got about 8.3 miles per gallon. Although this past year the Fleetwood has been getting a bit better.
In general of course the Fleetwood is a huge upgrade over the Four Winds 34H.
David
