Stille Nacht, heilige Nacht,

Alles schläft; einsam wacht…
(Updated stale link, 8/27/2015)
My father’s family were/are all German Lutherans*…and while I think it’s better in German, I have a hard time arguing with this version 🙂 But for those who may want something a little different, it’s hard to beat the Mannheim Steamroller version:

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* Except for the Catholics, of course, but they married in in my father’s generation.