Hi there Jill!
Thanks for bringing your question to the Disney Parks Moms Panel. With four days to spend at the Happiest Place on Earth, you are going to create so many wonderful memories. One of the biggest reasons to choose a park on a certain day for us depends on if we are eligible to take part in an
Extra Magic Hour (as a registered Disneyland Resort Hotel Guest) or
Magic Morning. Currently,
Disneyland Park offers their Extra Magic Hour to hotel Guests one hour prior to park opening on Tuesdays, Thursdays, and Saturdays.
Disney California Adventure Park has their Extra Magic Hour on Mondays, Wednesdays, Fridays, and Sundays one hour prior to park opening. Magic Mornings are offered on Tuesday, Thursday, and Saturday only at Disneyland Park.
Other than taking advantage of these special mornings, for us the parks are great on any day! You may want to check the
Daily Events Schedule prior to your trip to plan for any parades or nighttime spectaculars that may be only offered on certain days as well.
Please return if you have any other questions before you arrive, and have a magical day!
-Jennifer