I was pregnant last trip which made me go on attractions I otherwise would have skipped, like COP and IASM. I'm glad because DS really enjoyed them, but they're one and done for me personally. We also did our longest wait of the trip to go on Astro Orbiter, which he had been begging to go on since last trip. We rode it lit up at night and he loved it. We also did Rafiki's Planet Watch which was worth it mainly for the character meet and greets, the affection station was less interesting than the petting zoo area of our local zoo.
Next trip, assuming I'm not knocked up again, there's so much to make up for! All. The. Coasters. ToT, TT, FEA, new Soarin! And Dinosaur, and the Avatar rides assuming that actually opens on time (not going back until 2017).
We also want to try new to us restaurants - Garden Grill and Tiffins are at the top of my list.