Your parent's dates are the same exact dates as ours

. This too will be our first time in December....I will tell you what we have planned so far (haven't made ADRs yet).
- Cali Grill around 5:30pm (want to do this on arrival day since we don't go to any of the parks then, plus I want to see all of the Christmas Decorations from all of the MK resorts)
- Tony's Town Square for lunch....hopefully we'll be able to get a time around the 3pm parade so we can eat outside and watch like we did in March
- CRT for breakfast
- Garden Grill for dinner (first time
- O'hanas breakfast with Stitch and friends (first time)
- Le Cellier - never been to this and really hope we get a dinner ressie for one of our days
- 50's Prime Time Cafe for lunch- but still deciding on this one
- Yak and Yeti for dinner - still deciding on this one as well...but I think we are still going to try this one out because we have never been here.
Good luck deciding and congratulations on your parent's recovery, it sounds like they need this vacation.