Definetely Typhoon Lagoon! It really puts you in a lush, tropical setting .Sense you have two adults and just one young child, the rents can relax while your daughter can have just enough thrills that fit her age range. It is by far our family's favorite!
BB - has a great area for 9 yr old called Ski Patrol. There you can relax and she can play away in your view. Awesome family raft ride, lazy river, calm bobbing wave pool, great slides and a clever cartoon decor.
TL - lush tropical landscaping and more relaxed, shark reef, powerful wave pool, lazy river and plenty of slides for all to enjoy including the new one.
But, either way I would not let her go anywhere out of your sight, so get ready to slide