My Birthday is at the end of December and I was possibly considering spending it at Walt Disney World. I've spend three birthdays at Disneyland, and each time the park was extremely full. Can I assume it's the same way in Orlando? I'm sure the parks must be packed on New Year's Eve and New Year's day, especially Magic Kingdom, right? What about on days like Dec 27, 28, 29? Are the WDW parks and resort in general full this time of year the way Disneyland is? Any info, insight, tips, etc would be much appreciated. Thank you!