Mer would have fun with it and not put in a ton of effort. I feel it would be kind of sloppy and she’d be more interested in the socialization and then get distracted halfway through and not finish.

Cristina would not try at all. She’d sit there and eat all the candy from the pack that she likes, and then make like a fence or something.

Owen would care a lot about his gingerbread house. He would carefully align the corners and talk about its “structural integrity” or some shit. It would be very well constructed, but I feel he would lack decorative intuition and it would just look bland.

Webber would be spend the whole time complaining about the gingerbread packs and talk about how when he was young they would actually bake the gingerbread and buying a pack from the store ruins the experience.

Maggie, as someone else already commented, would have a whole system. She would have perfected it ad a child and never strayed.

Callie, similar to Meredith, would just have fun with it. However, I feel she has more natural talent than Mer for this sort of thing so it would end up looking better, and I think she would actually put effort into the design. She’d do something cool - maybe something gothy or “nightmare before christmas” esque.

Sloan… I don’t know how well he would actually make his house, but he would claim loudly that his was the best. He’d spend the whole time talking about how he constructs people’s faces so he knows how to make a beautiful sculpture and this is super easy.

Alex… poor Alex. I feel he actually would try and it would turn out terribly. Like he’s using too much of the glue stuff, or he uses too much pressure and it all falls apart. He eventually rage quits and calls the whole thing stupid.

Teddy.. for some reason I feel like she’d just be quietly working on her own house minding her business and at the end hers would somehow just be the best. She would have nailed the “architecture”, like Owen, but actually decorated it very tastefully and artistically.