I dig 'em. I play in a Catholic church so we do a bunch come Christmas. Right now we're in Advent so no Christmas music. But we've been rehearsing. I always get my token bass solo every year on "What Child is This". We do a cool jazzed up version that has a "Take 5" type of feel. It's in 6 though, but it has that swing to it.
My all time Favorite Christmas album is "A Charlie Brown Christmas". Vince Guaraldi's piano work is killer. Nice bass lines also. I had it on my stereo last night and was jamming along.