Hello Kimberly!
Thanks so much for stopping by the Disney Parks Moms Panel! I hope you are having a magical week!
Mickey would never want anyone to be frightened!
Mickey's Halloween Party is pure fun! There will be some evil villains, perhaps a visit from some ghouls and Jack Skellington, but rest assured, it’s all in good fun!
I think it’s entirely plausible to have 3 day 1 park per day passes. My family does the park hopper option simply because we can never decide which nighttime activities we will want to do ahead of time. We love World of Color and the Fireworks over Sleeping Beauty’s Castle. If we have the park hopper option, we can do either, no matter the park we are in, but it’s certainly not necessary.
Our “must do” attractions are always
Radiator Springs Racers at Disney’s California Adventure Park in Cars Land, and
Peter Pan’s Flight over in Disneyland Park. Both are family favorites!
I hope this helps and let me know if you have any other questions as you plan your visit!
See you real soon!
-Emily