we are looking at class c preferably the B+ versions. The class c is a sail in headwinds and will quickly run out of a-- in one. Then add a towed vehicle and you are at max capability and mpg will suffer greatly. Just like a pu with a slide in. The b+ is a little more aerodynamic this will also suffer but not all the sins of a true c. anyhow as to an A well its all personal choice as you can see. I drive a school bus and in places it is NOT FUN, now to try to have fun and drive one NO WAY. Now even with a c/b+ there will be times its not fun, but it is easier to transition to a cab type of vehicle than it is in an A. Biggest hazard in long c's and A's is tail swing. that is the pivot point being the tires and the long rear overhand will lead to the tail going over the line into either oncoming traffic or the traffic lines turning away from. We are looking at 28-30 ft, much like a medium school conventional bus. Only thing I see is that the drivers compartments are fairly primitive. Oh decent seats but tend to leave the little things out like fully adjustable seats, some dont even have power mirrors, door locks or back up cameras and still they want in the high dollar realms. Ones with all including level jacks, air assist rear bags are in the 6 figure range new. When I asked why one sales guy said you "dont drive these long distances, you drive and then park so you dont need the nicer driver compartment. If ya do get an A"! Anyhow like I said there are pluses and minus for each type, but the biggest negative on the c is the lack of outdoor storage for the most part and the lack of a nice driver compartment. Overall size is another factor, where ya gonna park when not traveling? The A's are generally at least 1 ft taller than a c. and run the same basic running gear as a c, just on a longer wheel base.
So it all boils down to what you are comfortable with. We train new drivers for a minimum of 20 hrs to learn how to drive the large buses and operate all the air brakes etc. Still many have problems and they have been coached, your experieance may vary but still..........