I... actually really hate Christmas music due to sheer overexposure at work. xD But music with a "wintery" ambience is really nice. Some anime or video game bgms capture it with twinkly noises, wind, bells, xylophone... that sort of thing. And those kinds of songs, I could stand to listen to, even if the melody has been done to death by Christmas. So by proxy, I guess Trans-Siberian Orchestra counts too? I don't have any youtube-able examples tho, sorry.

I'll take ooparts06, tantalus01, tantalus03!