I hate the idea of multiple Christmases at different houses just because people can't get it together and be in the same place at the same time. Christmas is Christmas and all the other family gtg are holiday parties/family gatherings; NOT Christmas. Forcing us to travel to different peoples houses for DD to get gifts and passed around by people who we see once/twice a year is not what the season is about.
Yeah, I'm selfish. But if I offer to host Christmas day brunch and the day after I shop for the food and two days before Christmas day half of the people change their plans and tell me they are having Christmas on the weekend and some random evening next week I think it's pretty inconsiderate.