The Greentrax BAH HUMBUG CD will be out again, plus some Kipper family - "Arrest these merry gentlemen" and "Gaudy Tree" for some "alternative" Christmas songs. (Many of these in the DT or on searchable threads).
Mike Oldfield's "In Dulce Jubilo" for sheer exuberance and way-out guitar.
Some Maddy Prior and the Carnival band.
Then in my "classical" collection. The Praetorius Christmas Mass, and the Czech one by Jacob Jan Ryba, and Handel's Messiah.
And somewhere we have a CD of my daughter's High School choir, ca 1992, with a lovely rendering of "O Holy Night".