Growing up, we always did the traditional Thanksgiving feast, and my wife and I have always done the same. I don't really care for most of the traditional TG food, though, so to me it's a helluva lot of work for what I consider to be a mediocre meal. I think my point of view is significantly influenced by the fact that we never had a big TG gathering like a lot of folks have. I'm 11 years younger than all of my siblings, so from the time my youngest sister got married at 19, I never had more than one sibling living in the house, and it was hit or miss who would show up for TG. Also, all of our extended family was back east, so we never saw them. This more or less continued after I got married since my wife's family is also back east. Nowadays, we only have a few close living relatives -- both of her parents and both of mine are dead -- so it's just my wife and me and our two teenagers (and occasionally a family friend). My wife finally decided that, this year, she's not going to buy a full turkey and will scale things way down (but she'll still do the pecan and apple pies!).
Christmas dinner when I was a kid was, for whatever reason, centered around ham, which I never liked. My mom made a bunch of different kinds of cookies, my favorite of which were oatmeal butterscotch cookies with marashino (sp?) cherries. For whatever reason, my wife's family adopted most of the Swedish Christmas food traditions of her father's mother (who was born in the U.S. to two immigrants from Sweden). She makes ground pork meatballs and some other stuff and a couple types of Swedish Christmas cookies (spritz and pepparkakor). She also makes Swedish coffee cake, which I think is dry AF, but she insists on making one for Santa Lucia (sometime in the second week of December, I think) and one for Christmas morning. About 10 years ago, we added roast beef to the mix for those who don't care for the pork meatballs.