I think my goal will be to try to get to the meet and greet area about 15 min before the schedule says the princess will be there. I'm hoping that will help me a) find the meet and greet line and. b) enable me to move onto the next one quickly. I'm hoping that 15 min early is enough if anyone has first hand experience with them and this isn't enough time (or too much!) please let me know!
When I went in March, I arrived at Belle's line about 20 minutes before her Noon appearance and there were 5 or 6 families in front of me. She came out at Noon on the dot and worked through the line at a reasonable pace. I finished with her at about 12:20 and made it over to China at the very tail end of Mulan's Noon availability, but they'd already capped the line. I decided just to wait for the 1pm availability, and was the first person in line for that.
Based on my experience and what I've heard from others doing the same, it's very unlikely you'll be able to do two princesses in the same availability window unless they're country neighbors (and even then, it might be tough -- Belle's line ended up capped for the Noon spot before she even came out). However, you can almost certainly do one princess, then get in line for the next one, and keep stacking them throughout the day.
If I were trying to get to as many of them as possible, I think this is how I'd do it:
Before 11 - Elsa and Anna in Norway (this moves pretty quickly)
11 - head directly to China for Mulan, probably done by 11:15 or so
11:30 - in line for Jasmine in Morocco at 11:45
12:15 - in line for Aurora in France at 12:30
12:45 - in line for Belle in France at 1
1:15 - in line for Alice in UK at 1:30
1:45 - in line for Mary Poppins in UK at 2
2:15 - in line for Snow White in Germany at 2:30
