Memorable Bed & Breakfast's, lodges, resorts, and boutique hotels, with a few outstanding campsites thrown in.
No point in listing cookie cutter motels and hotels which are neither memorable nor unique.

By the late 90's when our income increased and our tolerance for sleeping on the ground decreased, our National Park visits switched from camping to staying in park lodges if available.

Outside of parks, we first look for Historic Hotels of America

and if none, check local Bed & Breakfasts here

and here.