The Gospel Coalition has a blog post by Joe Carter: 9 Things You Should Know About Christmas. It’s all fairly trivial stuff: Jesus probably wasn’t born on December 25th, there’s no mention of a donkey in the texts, we don’t know how many wise men there were, Martin Luther disapproved of Santa Claus but may have been the first person to decorate a Christmas tree with lights, and so on. Nothing that’s going to break any paradigms there.
I would add a more substantial misconception—if you’ll excuse the pun. Contrary to popular belief, Christmas is not about an incarnation (“Hail the incarnate Deity!”). It’s about the birth of a king (“Glory to the newborn King!”). The New Testament does not construct the divinity of Jesus on the stories of his birth. I have a lot of marking to do before the end of the year, so I’ll keep this brief.