The logistical details! It provided a believable (within fantasy) system. The miniature sleigh, the eight tiny reindeer, the names, the way he gets up the chimney ('a wink of his eye and a twist of his head'). It gave Santa a methodology. This allowed stories to expand, question, and play with those mechanics. What if the reindeer get sick? What if the sleigh breaks? What if he gets stuck in a chimney? The entire subgenre of Christmas comedies or problem-solving adventures ('The Christmas Chronicles,' 'Elf') exists because the poem established a concrete, if magical, process. It didn't just say 'magic happens'; it described a operation, which made it feel more real and thus more fun to tinker with in subsequent fiction.
Graphic novel panels. Storyboard the poem into a 4- or 6-panel graphic novel. Students have to decide which moments are key, what the characters look like, and what text goes in each panel. Teaches visual storytelling, pacing, and summarization.
The portrayal of St. Nick's face is a major differentiator. Is he a distant, majestic, almost spectral figure? A twinkling, rosy-cheeked grandpa? A busy, efficient magical worker? Each choice sets a totally different tone. The 'best' match depends on which aspect of the poem you emphasize: the awe of a supernatural visitor, the warmth of a gift-giver, or the mechanics of a clandestine operation. I prefer the versions where he looks focused and kind, but slightly mysterious—not fully knowable. He is, after all, an 'elf.'
I have a soft spot for the mention of the 'kerchief' and 'cap.' In an era before central heating, people slept in practical headwear to stay warm. That tiny detail anchors the family in a real, slightly gritty historical reality. It’s not all gauzy sentiment; there's a practical chill in the air they're guarding against. That makes the warmth of the 'snug' children and the 'hearth' more meaningful. The family setting is one of managed comfort, of creating warmth against the cold world. It adds a layer of resilience and resourcefulness to the scene that pure whimsy might lack.
Consider the adaptation that happens off the page: the family tradition. The book you choose becomes part of your family's ritual. The 'house' in the book becomes forever linked to your house. The mouse in the illustrations becomes 'our mouse.' That's the most powerful adaptation of all—the internal one, where the story maps onto your own life. So my advice is less about the specific book and more about consistency. Find one you like well enough, and read it every year. Let it get dog-eared. Let hot chocolate stains splatter on it. Let your kids finish the sentences. In twenty years, that specific edition, with its specific pictures, will be the only 'right' one, because it's the vessel for your family's memory.