I have been to Disney World parks many times by myself and there is something almost relaxing about it. No family to argue about the heat or what to eat or when to eat for that matter.
Going stag to a park can be quite fun really. You can take a break when you want to and you can ride an attraction and no one will give you a weird look or question it. And guess what? You are allowed to smile, and laugh, and do whatever you really want to. It's Disney.
Of the four parks, some are more enjoyable with family than they are as a solo guest. I have been to all four parks by myslef and none rank lower than Hollywood Studios.
I love H.S. but visiting the park by myself left a lot to be desired. Sure, hitting Galaxy's Edge was fun and doing the Smuggler's Run in the solo rider line was quick and easy but beyond that, there wasn't a whole lot to keep my interest up.
Toy Storyland is more for kids and family and the Animation Courtyard is pretty much designed for families and younger kids who want to meet Disney Jr. characters. While I did stroll through the Star Wars Launch Bay, I found that part of my afternoon to be the most pleasing.
At Launch Bay you can stroll through the history of the movie and look at props and models at your complete unique pace and that was enjoyable as my wife isn't a huge fan of the series like I am.
Still, after it was all said and done, I found myself back on the Skyliner heading back to EPCOT.