Animal Kingdom, where there was an interesting bird show, The Lion King musical (which was filled with cool acrobatics) , a colorful Finding Nemo musical, lots of animals to see, rides and a parade with Disney characters.
Epcot, one of my favourite parks (along with magic kingdom), where there were very futuristic rides, a character meet spot, an aquarium with dolphins (love them), replicas of countries from around the world and a very beautiful firework/light show called Illuminations.
Hollywood Studios, where we watched the Indiana Jones stunt show (which was awesome) and Beauty and the Beast Musical as well as went on a few rides.
Magic Kingdom, of course, where we saw Mickey Mouse and the princesses in a parade and show, as well as went on many classic rides such as Dumbo and the teacups and a few bigger ones such as Space Mountain.
If you are a Harry Potter fan, you must visit the Wizarding World of Harry Potter at Universal Orlando. I can't put into words how amazing the Forbidden Journey ride was or the butterbeer.