I suggested with my W Thanksgiving with one, Christmas with the other, then switch the following year. Never really happened .. the first year was a 'all of us during Christmas, I had no idea about OM at the time (Probably a good thing).
The next year I had him for Thanksgiving .. did an entire spread ... She was taking him to her family but plans fell through so I think I took him the 26th ... she hinted she wanted to come but at that point I was done ... was not going to give her any more cake honestly .. nor did I even want to be around her at the time.
Holidays are brutal ... but try not to look at it as "she wants it all " or "She is winning" .... think about the kids here and its obvious you both can not be there so one of you will have them, the other will have to make it up somehow and THAT is the part of this that stinks .. it also seems to be the part that the MLCr does not compute when they are all fog'd up.