Thank you to CnC Bartok. This is an outstanding performance of Ryba's Christmas Mass...
Of course, picking a favored recording is somewhat like being asked to pick you favorite child. There is no "best" when they are special to you.
I suspect the Austro-Germans and the English have inappropriately dominated Christmas music, just like they try to dominate everything else and there is a lot of outstanding Eastern European Christmas Music out there. I could be wrong.
If this piece doesn't say "Merry Christmas", what does?