Two of the books on your list are books I just read this season. The Courtney Milan one and A Wallflower Christmas. I really enjoyed both of them. I also liked Twas the Night After Christmas by Sabrina Jeffries.

It is actually hard to find many of these! Traditional Regency yes but other eras are hard.

I adore Kleypas's A Wallflower Christmas and Sabrina Jeffries has a few Christmas romances which always make me smile. Mackenzie Family Christmas: The Perfect Gift by Jennifer Ashley has to be my favorite Christmastime historical romance but it's definitely one for the fans of her Highland Pleasure series. I don't think it'd have the same impact if you hadn't read (at the very least) The Madness of Lord Ian Mackenzie.

I really like a Devil in Winter.

Yep. It is a classic!