Best place for the buck
My daughter attends Kidcam summer camp at St. Rita, and I think they well entertain the kids as well as provide continous activity for the kids no matter what age. I have not had any issues with the counselors there - which are high school students.
Nice small town feel
This is a membership park so unless you belong you can't just stop in. However, it is a nice place to camp to see the north shore area and to make the trip into New Orleans without being in town. Mandeville is close by for shopping.