Port Aransas is best for families in my opinion, and my favorite park is On the Beach RV park. Just 50 yards away from the beach, and a nice small park. Maybe 35 sites or so, and the prices are reasonable. I'll be there the 26th through the 29th of this month with my kids.
Washington DC Area (NOVA)
Camper: 2004 Damon Daybreak 3285 WorkHorse 8.1
Toad: 1996 Jeep Cherokee XJ 4x4 - BlueOx
Toy: 2012 Ninja 650 - Versa Haul VH-SPORT-RO
Spent three years full time, so I know a little about it.