Kathleen Battle sure is pretty, I'd rather look at her than hear her sing; but that's the "subjective" opinion of a jazz aficionado.
You just can not have Christmas without Mahalia Jackson's "Silent Night"; she convey's the religious aspect of Christmas like no one else, it's almost supernatural, and that's not as subjective as one might think, because people in London England will agree with me.
http://www.youtube.com/watch?v=uRpMc5OVHnc
Enjoy the music.