We just returned from two weeks at Edisto. Itís at the end of the road and on first glance not a lot to offer in the area. However, once we began to do a little exploring and research we found it a delightful area and have booked 2 weeks for next April. We stayed in the river side where the sites for the most part are adequately separated from one another. The beach sites are pretty much open and for us a little too close, but it is on the beach.
Have driven through both Hunting and Huntington. Hunting we felt to be crowded with sites too close. Huntington, been awhile, but as I recall a nice park.
Hope that helps.