This reminds me of many years ago when I was in a store trying to buy my first computer, a friend saw me and calmly said relax, there’s no best computer & this won’t be your last computer.
Look at this trip as the first of many, assuming you have a great time, so relax, what you don’t do this time you’ll do next
There’s no ‘best’ vacation plan, there’s only the one that makes your family happiest, you’ve done all the work to enable you to maximize your vacation, but some of the best memories are the unplanned bits, or the mix ups...if you can laugh about them.
So first thing is to pack your sense of humor
I love going in Dec., I relish the beautiful decorations, like the Christmas carousel in the BC or the tree+gingerbread house at the GF, remember the season and take time to soak up the wonderful job Disney does.
The weather ranges from 80s to 30. The 3 times we went when it dropped to below freezing in Dec. I just bought big heavy duty on sale
@The Disney Store in Disney Springs (DTD then) ‘souvenir’ sweatshirts & cute Mickey knit gloves. One year it was so cold waiting for illuminations in Epcot my BIL and I bought those heavy blanket poncho things from Mexico. Even during warmer Dec.s it feels chilly at night if you’re near water IME & there’s lots of bodies of water near the parks and resorts, I’m planning on packing a light down jacket this trip when we go in 9 days so if it gets cold again I won’t end up buying yet another sweatshirt