Songs taken from This thread, where people listed their favorite songs.
1a) God Rest Ye Merry Gentlemen
1b) Hark! The Herald Angels Sing
1c) The Holly and the Ivy
2a) Adeste Fidelis
2b) What Child is This?
2c) Oh come, O come Emmanuel
3a) Happy Xmas (War is Over)
3b) Christmas Wrapping
3c) I Believe In Father Christmas
4a) Father Christmas
4b) Have Yourself A Merry Little Christmas
4c) Silver Bells
5a) Fairytale of New York
5b) O Holy Night
5c) Angels We Have Heard on High
6a) Sing We Now of Christmas
6b) Do You Hear What I Hear?
6c) Do They Know It's Christmas?
7a) Silent Night
7b) Carol of the Bells
7c) We Three Kings
8a) Snoopy and the Red Baron Christmas
8b) Twisted Christmas
8c) The Christians and the Pagans
Sorry if anyone's favorite didn't make it. Should've posted to that thread!