That's like asking how much salt to put on your food. I think if you listed the pros and cons of each configuration, the lists would be equal, as so many features and benefits are a trade-off. Personally I chose C over A because of the cab and chassis configuration. You have a real truck cab built by a real truck builder and everything (wipers, a/c ducting, gauges, doors, windows, wiring) is built from the factory with many years experience and delivered to the coach manufacturer already in place. Many A models seem to experience lots of issues "up front" as a result of an RV body company attempting to build a truck cab. The C's cool much better as the cab is mostly covered by the over head bunk and the ceiling in the cab is lower. The engine of a C is out front so noise and heat are non existent. Mostly for me, I chose the C because you can get diesel power up front and you have two regular doors like a car which are very convenient for fuel stops, emergency exits, etc. From the back of the driver and passenger seats everything is very similar. From the seats forward...two different worlds...one created by a commercial truck builder...the other by construction workers.