K.M.
Agree with OneAndDone- North Myrtle is much better. We stayed there at the Seawatch Resort. Perfect for all ages. It has two towers of beachfront condos. Each tower has it's own pool complex (but you can use both of them), one is more of a party atmosphere and the other is quieter. Both have pools, hot tubs and a lazy river.
There is a restaurant on the property, they offer really fun kids camps and the beach is just steps away. (I recommend splurging for beach service. It gets crowded!)
The location is great, it's in a more residential area and there is a super Walmart less than 10 minutes away. Do your shopping for the week and settle in.
Have fun!