Hi there, Steven! Welcome back to the Disney Parks Moms Panel!
It looks like you have some expert-level
FastPass+ skills, Steven! It's great that you were able to secure FastPass+ reservations for the super-popular
Slinky Dog Dash at Disney's Hollywood Studios and
Avatar: Flight of Passage at Disney's Animal Kingdom Park. Your planning is off to a "fantasmic" start!
I think you're absolutely on the right track with the rest of your plans.
Seven Dwarfs Mine Train is your best bet for a FastPass+ selection in Magic Kingdom Park because the standby wait time can be as long as two hours on busy days. And if
Frozen Ever After is a must-do for you at Epcot, making it a FastPass+ selection is also a good idea, since it's another attraction that sees long wait times throughout the day.
One way to narrow down your FastPass+ choices is to hop on your
My Disney Experience mobile app and check the wait times for each Theme Park. You can see at a glance which attractions often experience long waits - those are the ones that will give you the most benefit from a FastPass+ reservation.
Steven, I hope this helps you plan a practically perfect Walt Disney World vacation! Please do come visit us again if you have any more questions!
Keep Disney Dreaming,
Kathy K.