Definitely
1. Fairytale of New York - The Pogues and Kirsty McCall
Have seen this sung live twice by the Pogues in the week before Christmas (20 years ago in Glasgow and latterly 2 years ago in Manchester and it was still as special as ever

) Love it!
2.) The Power of Love - Frankie Goes to Hollywood
Really beautifully and powerfully sung.
(Not strictly sure if you'd class it as a Christmas song but it was out at that time of year and the video has a lot of religious imagery in it)
For me, most of the rest of the usual Xmas songs merge a bit into into wallpaper shopping music, lol !
Except maybe, 'Driving home for Christmas' by Chris Rea, which has real feelgood vibes

!