Silent night stands out since it's always sung in such a sappy sad tone that it's one of the few emotional moments when I feel something at all after a bunch of thoughtless songs,just the tone of it does that for me and makes it less of a shallow Hallmark card moment where I'm expected to be in the holiday mood just because and turns it into something more real to me.
Here comes Santa Claws seems to get stuck in my head this time of year ,not sure if I enjoy having that song suck in my head haha.