Like in real estate, we go with location, location, location.
Staying right at South Rim this year, stayed at Fishing Bridge in Yellowstone, and always stayed at Fort Wilderness when we were doing the Disney thing.
All I need is a site with 30a service. Everything else is fluff.
I don't care if it has tight spaces, back-in vs pull-through, patios, pools, fire pits, craft activities,etc.
Only other factor that drives our decision is the quality/cleanliness of the bathrooms, and only when there's a choice of more than one campground.