You don't indicate if it is just you or you have a partner so, if it was just me, I would far prefer a Class "B". There are two of us and we have considered a "B" in addition to our "A" just for overnights and short trips in crowded places and for a third bedroom. It would also be our DD. If there is some other reason for a "C", then rent one for a week and try the bed out.
In my opinion, "C"s are not all 102"(most are 96') and I think there is a HUGE difference between a 22-23 foot and a 26-28 foot. Our first rig was a 27' model and in a parking lot like a super market, it took 5 spaces to park, three for the rig and 2 for ingress and egress. You cannot head in a standard car park space in a 26 to 28'.
"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson
David Bishop
2002 Winnebago Adventurer 32V
2009 GMC Canyon
Roadmaster 5000
BrakeBuddy Classic II