I love the Coventry Carol because it's one of our oldest carols and written in the old modal form. It sounds pretty eerie when done well (my mother did a wonderful SSA arrangement which our church choir used to sing).

Silver Bells is completely different. I like the music but I have to admit the words are fairly banal. Still, it's better than a lot of the alternatives.

Thank you for the poll - always interesting to read people's responses.