Absolutely impossible to pick one. Judy and I started to discuss this and realized we have been to so many spots that were perfect for many reasons. Some are magnificent for their views (Pacific Shores,Newport Oregon, Polson Motorcoach, Montana, Blue Water Keys, Florida, etc). Some for their perfect location (Moss Landing KOA, California, Victoria RV,Victoria, Peggy’s Cove Nova Scotia, Motor Coach Resort, Indio California). We have been to hundreds of great Rv parks, great for a mired of reasons........it’s all good!
Well, it's plural "campgrounds" so list your favs as you want.
It's amazing that in 3 years I've been to quite a few CG's and I know many were amazing but I can't remember many of them! Locally my fav standout is Luray KOA in the Luray Caverns area in western VA. Shenandoah mountains with a beautiful setting, so peaceful, I really enjoy it there.
Pelican Lake was a beautiful location albeit site owned and very expensive, but Naples FL is a great destination I may be returning to this coming winter.
This thread is one I'm sure I'll be coming back to post as I think of the places that stood out to me.
For us, campgrounds are usually more memorable for the surrounding places they have allowed us to see. I suppose the one exception would be Polson Motorcoach Resort because we own a lot there. Otherwise, as @J&JD posted, it is hard to pick any one park on its own merits.