Look, if we're honest with ourselves, Christmas songs kind of suck. "White Christmas" is an exception because it has one of the greatest melodies ever written -- that's an objective FACT -- but otherwise? Christmas music is awful, awful, awful. There are exceptions, though, and I've identified the five best, because I am awesome. Not as awesome as these Christmas songs, but it's pretty damn close. 6) U2 - Christmas, (Baby Please Come Home) You thought this list was going to be "edgy," right? (Get it?) This one throws that assumption right out the window (though admittedly, it's a red…