There are very few things I love in this world more than a story where a superhero teams up with Santa Claus to save Christmas. I mean, I love Christmas comics in general, but the ones where the Jolly Old Saint himself shows up are always just a little bit more special, especially when the hero in question is Superman. If I was in charge, you'd see Santa Claus literally every time there was a comic set at the Fortress of Solitude, because really, the North Pole has exactly three residents, and who else are they going to hang out with? But I digress.
My point is, Superman/Santa Claus team-ups are great, even when they're weird -- and folks, they do get weird. Take, for example, one of Superman's earliest team-ups with St. Nicholas, wherein they have to battle against the evil machinations of a dude who hates Christmas so much that he makes Santa Claus even fatter than he already was, and Superman has to help him lose weight.