Criteria -

Original song released since 1990
Can't be a cover of a prior, old song (like Michael Buble's rendition of It's Beginning to Look a lot Like Christmas, for example, or Transiberian Orchestra's Christmas Eve/Sarajevo which samples Carol of the Bells)
I tried to capture the songs that are the highest charting ones on the current Christmas Billboard Chart

Feel free to pipe in with your choice that is not included.