This might be a bit obscure unless you like Celtic music.
My favorite Christmas album is the one that the Irish band The Chieftains did called The Bells of Dublin. They've got Jackson Browne, Marianne Faithful, Elvis Costello, and others singing with them. The album begins and ends with the bells ringing, and I gotta tell ya, I wait until after Thanksgiving until taking it out, play it throughout the holidays, and I just never get tired of it.
As a matter of fact, I just ordered another copy from Amazon because it, like everything else of mine, is still in storage and I did not get to listen to it last year.
My favorite song on the album is the one with Elvis Costello called The St Stephen's Day Murders. It's very wry, very Irish. Here's a tidbit:
For that is the time to eat, drink and be merry
'Til the beer is all spilled and the whiskey is flowed
And the whole family tree you neglected to bury
Are feeding their faces until they explode
I love the Very Special Christmas albums as well. I think I have 3 of those.
I absolutely adore all Christmas music: hymns, pop, country, all of it.