Well I usually only get games for my birthday or christmas, so it's always nice to pick up a couple and wait to play them as a gift to myself.
Usually get family to play some multiplayer too, my sister is always up for fighting games so theres always some of that.
On my own though I'll play whatever I got new or play some comfy games like animal crossing or minecraft loaded with christmas mods. Luckily I still have my old files from a beta version that had a lot of good christmas mods so it's a full nostalgia trip. Some Tf2 too, I'm thinking it'll be a good year for it since one of my favorite servers from the back in the day has a successor now (Even if nobody seems to play on it, it'll be fun to wander through the old maps)