Thlis is what we did this past Christmas and it worked like a charm. We got to Future World very close to opening, as I was anxious about the crowds. Turns out we could have taken a little more time to open presents, etc... but who knew?
We headed to World Showcase at lunchtime and ate at Chefs de France then experienced all the countries and lined up at 4:15 for the 5:00 Candlelight Processional. I would highly recommend getting the dinner package (which we did) because otherwise, we would NEVER have gotten in! After the Processional, we went to Italy for dinner and then went home, as my kids were too tired for Illuminations.
It was a great day, and not nearly as crowded as I thought it would be. We were very pleasantly surprised!
Have a great holiday!