I damn near grew up there and Universal. My mom made tv shows and commercials growing up so I was there a lot. I also used to work at MGM Studios (Now Hollywood Studios) after high school too. It has been some time since I've actually been to the parks so not sure what has changed as of late but if you focus on the parks you're going to you can def get to all the rides in each park in a day no problem. Pro-tip when you get there in the morning head to the back of the park and work your way up, it works out a lot better than following the crowd. My fave ride when I was a kid was Pirates of the Caribbean but if that haven't updated it (which they may have due to the movies) it could be a bit cheesy for you but still a good time. At Hollywood studios you def have to catch the Fantasia show at night, it's pretty dope. I don't really remember anything about Animal Kingdom. I would stick to the parks though because they will give you the most bang for your buck. Downtown Disney is cool but EVERYTHING is expensive as f***. No lie you can drop a few hundred bucks on a night there and only catch dinner and a show. One thing that is really awesome Downtown is the mini-golf, it is truly awesome and well worth checking it out. There are 2 courses and one is like animated stuff and really cool while the other is a scaled down replica of their PGA golf course with mini sand bunkers and trees and everything, it's a really different mini-golf experience.