If you want family oriented you want to stay in North Myrtle Beach. It's smaller, quieter, less obnoxious. You can always head into the Grand Strand during the day but you want to be gone before too late in the evening. There is a reason it's called The Redneck Riviera! From there it depends on what your family likes to do. I'm from Charleston and have family that lives there. PM me with what you are interested in and I'll send you some links and information. Pawleys is super nice as well but more expensive. Whatever you do you have to eat at Crabby Mikes. They also have a churrascaria there. It is delicious but very expensive and worth it! Warning: you have to be a carnivore to appreciate it. We never go because my husband is Brazilian and we attend parties about 4 times a year with the same kind of food. If you get a condo and wanna go cheap there is a Brazilian butcher shop that will sell you the meat already prepped. All you have to do is cook it; the secret is wood- no charcoal and no gas.
If I remember correctly Tanger has a
Disney store outlet

Then there is the golf and more golf and just when you think you can't possibly see another golf course... Golf!
South of Myrtle Beach is Brookgreen Gardens- every Wednesday during the summer they have dinner and nightly entertainment with cruises on the creek. It's so beautiful and relaxing. There are also children's learning activities.
Oh I could just go on too long- sorry
PM and I'll get you hooked up with stuff. I can also send you recipes if you want to try Brazilian before you buy it. Most of the Brazilians here are from Minas and Sao Paulo. So you end up getting meat, sushi, and italian food- go figure. You haven't lived til you see how avocado is really a dessert