Missy there is NOTHING IN THIS WORLD quite like Christmas time at WDW.
All of the parks have something special, but since you asked about MK, I’ll just cover that.
On this Saturday, the 19th, all of the things that are exclusive to MVMCP will be happening as daily ops for MK! Meaning the Christmas parade will become the 3:00pm parade. The shows that you can only see at the party, you’ll be able to watch in the day time! The fireworks display for Christmas is ABSOLUTELY BEAUTIFUL. Not as cool as Halloween and not as amazing as Pirate and Princess, but still UNBELIEVABLE nonetheless.
So yes, Christmas here at WDW is unlike any other. Yes it will be VERY busy, but it’s worth it to be in the most amazing place on Earth for the holidays. Come see me in the Move It Shake It Celebrate It Street Party Show!