Epcot is a fabulous park. When we went the first time, we spent 2 days there, and did a lot but not everything. We left off Test Track due to fumes and asthma, Mission Space, Ellen, and Figment because they didn't appeal to us. We didn't see the Pixar short films because we didn't have time. We did pretty much everything else, though. We have since learned our must-dos and things we don't care to do again just given the age and interests of our family members. World Showcase is definitely our favorite so we will spend most of our time there next trip. We thoroughly investigate each country and watch the films, so it takes several hours for us to travel through the entire showcase. We will also do Spaceship Earth (probably a few times if lines are short), Soarin', Frozen Ever After, the Gran Fiesta boat ride in Mexico (again several times) and Living with the Land. We will probably stop for pics with Joy and Sadness and Anna and Elsa. And we will try to get a pic with peasant Belle this time since we missed out last time. On one of our days, we will enjoy breakfast at Akershus and then snack around the World for dinner later on. On our other day, we will eat at Les Chefs de France. We will stay for Illuminations at least one night. We will visit the aquarium and hopefully catch some of the chats about the manatees and dolphins. My daughter will probably want to spend time watching the glass bead maker in the Mexico pavillion again. We also intend to do the pick a pearl thing in Japan this time. Because of how much time we spend in World Showcase, I'm pretty sure we will still need every bit of our two days this time even though we don't feel the need to hit all the rides. I hope dropping some things off our list helps our time at Epcot feel less rushed. With all the photo ops and kid-friendly rides, I can't imagine a day at Epcot would be a waste for your family. You could also purchase the passport kits for the kids so they have something just for them in World Showcase.