I agree with PP, we did NYE at WDW 2 years ago- spent 12/30 at MK, however we went late in the day and watched the fireworks at midnight, the crowds were very manageable later in the day and the fireworks were the most amazing I've ever seen in my life!!!! We did Epcot on NYE and although crowded, Epcot is so large and can handle crowds a little better, I would definitely do Epcot again on NYE!!! It was like one huge party with DJs set up in future world, Italy, American adventure, and china. I recommend staying in the Epcot area if you can as transportation will be the biggest challenge that night. We were lucky enough to rent points at BCV. Next time, I may walk back to the room to use the bathroom, as the wait for bathrooms in Epcot was brutal!!!!!! Especially if you are drinking alcohol.....