DH and I have stayed at both on several occassions and prefer Mt. Pleasant, mostly for its location. It is set back as if it was some kind of "private island" yet is very close to anything and everything you could need. The traffic at Oak Plantation is a problem - no such issue at the KOA. Prefer the staff at the KOA as well, and the layout of the campground. Some of the sites at Oak Plantation may be a little nicer, but there is nothing wrong with any of the sites at the KOA. Hopefully you are planning in advance. The KOA is very popular and fills up pretty quickly most weekends. Enjoy your visit.
