Your kids will love WCC! Its so much fun! The wait staff is so funny! If you ask for a refill you get a HUGE glass...if you ask for ketchup one person from every table has to bring you a bottle...they have wooden horse races...its really entertaining.
Ohana's is great too...its family style...they have a guy there entertaining, they have broom and coconut races...lots of crowd interactions...(Unfortunately, when we went a guy at the the next table must have thought it was a quiet sit down meal, so every once in a while he would yell "would you please keep it down!" he kept asking his waitress to have the man entertaining, to please stop. finally he just got up and left. I felt so bad for his kid. The kid would try to yell back with the audience but the father would make him stop.)
So anticipate both places being noisy, and crowded....but more importantly fun and entertaining!