I have no religious reasons for this, but I love "O Holy Night"
Years ago, while still a JW, I was working serving and cleaning up, for a large Christmas party at the home of some rich people I cleaned for. They had a string combo playing for their guests, and one of the guests got up and sang that song...........he had a fantastic operatic voice. I was in the pantry making up dessert platters, but the song brought tears to my eyes, it was so beautiful. Now I have many versions that I play all the time.
My favorite is the one by Il Divo. Josh Groban does a great job too.