Building RV park near McKinney TX, what would you want most?

Sites spread out far enough, or at least arranged in a way so you don't feel like you're staring at the back of your neighbor's RV.

I would also appreciate a fenced dog park so the dogs could go run around off-leash.

Also, not sure this exists in any RV park but we would love an "adults" area... meaning no kids around in a certain part of the park. Or at least put the kid friendly stuff at one end.