Stephen Moffat just cannot be stopped. His obvious love and affection for the show goes back to the parody he wrote for Children In Need, Curse of the Fatal Death. He has written probably my favorite episodes of each season: The Empty Child/Doctor Dances, The Girl in the Fireplace, and Blink. I think he has the best grasp of Doctor Who since Douglas Adams. And, knowing my obsession/love for Adams, that's saying something...