I beg to differ. The worst Christmas album ever has got to be one I got as a gag gift, It's a Cow Christmas. It is parodies of familiar carols changed to a cow theme. There are such gems as "Halle-moo-jah Chorus" and "We wish you a Dairy Christmas". Avoid at all costs--or buy it for someone you don't like's kid--LOL!
BTW, one of the best songs, although tired, is Garth Brooks' "Belleau Wood".