Denise,
I have kids very close to your children's ages and I can totally relate to wanting to choose activities that will appeal to all of them! I think you are in for a real treat if you choose the luau at
Disney's Spirit of Aloha Dinner Show at the Polynesian Resort! Your older girls are really going to enjoy the dancers and there is lots of audience involvement to keep them entertained. They might even learn the hula! I think your youngest will also enjoy the music and open air environment. The lights and sounds coming from the stage and entertainment should keep her interested, too! If your girls loved the Hoop Dee Doo Musical Revue, then this should also be a hit with all of them!
The authentic Polynesian food is quite delicious and bountiful, but there are also the classic kids favorites offered such as peanut butter and jelly, hot dogs and macaroni and cheese. So, while the adults can enjoy some new and exciting flavors, there is no worry that the kids (if they are picky) won't be able to enjoy their meal, too.
So, Mahalo (Hawaiian for thank you) for stopping by with your question and I hope you have a magical time!
~Allison L