Hi Ainsley!
I'm assuming you've never visited any of the parks before. Normally, if somebody has never visited Walt Disney World before, I would recommend absolutely visiting the Magic Kingdom. Without a doubt, it is the crown jewel of the Walt Disney World Resort.
However, in your case, I recommend visiting Epcot since your party is made up solely of adults. The park can be divided into two halves: Future World and World Showcase. Future World is a constantly evolving component that concentrates on technological advancements that the future may hold for us. In World Showcase, you can experience customs and culture from eleven nations around the world.
IllumiNations: Reflections of Earth, the nighttime spectacular, should not be missed!
There are some amazing restaurants in Epcot. Be sure to make an Advanced Dining Reservation; you can make them up to 180 days in advance
here.
Enjoy planning and write back if you have any more questions!