Again, take your time. Look at everything that interests you, make sure the floor plan works.
Where will you put the litter box for your daughter? Sit at the table or dinette, also the couch. Can you see the TV without twisting your neck. Is there sufficient room in the shower and bathroom?
Closet space for your clothes, food storage, etc..
A Class C may be easier to find someone to service/repair the engine because it has a hood to make access easier.
We have a 96 Southwind, I like the Class A style and view while driving. But, I will consider C when I decide to get something newer.
Start looking and keep asking questions. :)