You said it, they both have ups and downs. That front cab bed is really nice if you have pre-teens and teens. If you have mobility issues it can be really difficult to get up from a C even a super-C. You can have your C serviced without having the greasy technician climb through your motorhome. Many A's have heavier suspensions and larger tires giving a smoother ride. So you must consider the type of floorplan that fits you best. Your budget, what you want to tow, how much gear you intent to take. There are some really beautiful C's and super-C's out there.
Happy Trails.