Hi Deb!
Thanks for coming to the Disney Moms Panel for help and I am going to do the exact same! My friend and Moms Panel member,
Brigitta, who like me is also Canadian, put together a great answer for this question with information right for the Walt Disney World web site.
To see the full question and answer you can
click here, but I have also included the answer below which is designed for the time when you will be at the resort.
Highest Attendance: Presidents' week in February
Mid-March through Late April ("Spring Break")
Memorial Day weekend
Mid-June through Labor Day
Thanksgiving Day and weekend
Christmas week through New Year's Day
During regular attendance periods the Theme Parks tend to be the busiest on the following days:
Magic Kingdom Park: Monday, Thursday, and Saturday
Epcot: Tuesday and Friday
Disney's Hollywood Studios: Sunday and Wednesday
Disney's Animal Kingdom: Theme Park: Monday, Tuesday and Wednesday
This
is a list that Disney World has generated based on attendance trends
throughout the year and because I do not know when you are going, I
thought it best to give you everything! Based on this information, I
would go on the Sunday to Magic Kingdom if there are no special events
listed for that particular day and you want to take advantage of the
Extra Magic Hours.
Have a very magical 10 days!
Carrie