I've gone to so many theme parks. Another family fun park to go to (besides Disney) is Universal Studios Orlando. I've been to the one in Hollywood, too. Hollywood is great because of the back lot tour.
All of Hogwarts world is in Orlando. It's such a magical experience. It's so detailed! The atmosphere feels like you're walking straight into Diagon Alley. You can grab a Butterbeer (not real beer) and walk around stopping into the many shops and explore. The shops are straight out of the books and have everything from robes to picking out your wand!