We figured out first how many full days we had, and what we wanted to do. I knew we'd want at least 2 days at MK, and a day for HS and AK. We also wanted to do Sea World and Discovery Cove. I knew that I wanted our first and last day to be at MK.
Then, we tried to think of what sort of extras we might want to do - in the way of character dinners, watching the fireworks, parades etc...
Then we sat down and looked at the crowd calendar and figured out which days were the best for which parks.
Then, I started figuring things out. My kids don't do well with late nights, so I knew that say, on a night when we were going to be at MK on the Pirates & Pals cruise watching fireworks, it'd likely be midnight before we got back and into bed. So, I knew that the next day, we would need to let the kids sleep in, rest etc... and wanted to plan something that wasn't going to require an early morning (ex. Discovery Cove is only open 8-5, so that wasn't a good choice for the next day. Animal Kingdom in the summer is only open until 7, so, same thing).
Then, I also knew that we would want a "down day" in the middle. Be that either an entire day for rest, or, a day where we do a park that is slower.
So, all of that went into consideration for our schedule:
Day 1: Hoop de Doo show 4:00 pm (no parks planned that day, as we're driving 27 hours to get there, and we will all need a break)
Day 2: Magic Kingdom (recommended park), Pirates League that morning, Pirates & Pals cruise that night at 9:00
Day 3: Hollywood Studios (open until 8:30, so not a big deal if we don't get there until 11 or 12 after our late night)
Day 4: Discovery Cove (this is our "down day"), Epcot that evening for a few hours
Day 5: Sea World (open until 9:00, so not a big deal if we don't get there till later)
Day 6: Animal Kingdom (recommended park, more leisurely pace here, good for in between the busyness of SW and MK)
Day 7: MK with BBB at 5:00 and CRT at 6:50