The wife picks the floor plan.
My wife wanted
* a pantry for groceries
* a closet for clothe storage
* a bath big enough to use easily
* a bed you could exit without crawling over your spouse
* room for two adults and dog if we had to stay inside
* no set up time for an overnight stop.
We came from a wilderness canoeing and tent background but wanted to tour the country.
We ended up with a 25 ft TT pulled with an F-150.
Twenty six foot 2010 Dutchmen Lite pulled with a 2011 EcoBoost F-150 4x4.
Just right for Grandpa, Grandma and the dog.