Some like Ann Charleston & Ian Smith's (AKA Madge and Harold Old Fashioned Christmas are not very good while Jim Davidson's cover of White Christmas will be exercised because of MASSIVE RACISM, (if you haven't heard it, yes he does the voice). Here's some alternatives I like.
Erasure. She Wont Be Home
The Carpenters – Merry Christmas Darling,
Mel & Kim – Rockin’ Around the Christmas Tree