We like to arrive early afternoon, check in, drop off the bags, have lunch at the food court (AS Movies) or at MK, and walk through the castle, then see the parade. Depending on the season and the crowds, we've gone to dinner at Baskervilles (at the Grovesner resort), then come back to MGM in time for Fantasmic. Yup, all on the same day, and with kids!
Fast forward to this year- in Sept with free dining- we will drop the luggage at the resort & grab the bus to MK for lunch at Cosmic Rays, rides, parade, then over to MGM for the FDP at H&V. I am second guessing myself about H&V when we could have done another character meal or something a bit tastier....but DH likes the idea of the easy seating at Fantasmic. I don't know how crowded it will be on 9/8, but ok. I'm going to Disney World!