What is the greatest Christmas song ever?

John Lennon, Happy Xmas (War Is Over), Fairytale Of New York, The Pogues & Kirsty MacColl, Santa Claus Is Coming To Town, Bruce Springsteen, Do They Know Its Christmas, Band Aid or something else?

This Day in Music have launched a poll to find out what your favourite Christmas songs are.

What song would you pick? You can see a full list of songs and vote on http://www.thisdayinmusic.com