I, too, nominate Mr. Keeble for MotM. SO much work goes in to this site and the efforts of Curse and Nuri have been outstanding. We all enjoy Alohomora, but when you're willing to step up and lend a hand to keep her going, that's a gift to all of us and one that should be recognized.
For CotM, I would like to nominate Flying Instructor Scott McCoy. I read this {link} post and loved how the character was presented - not perfect, not a flying ace, just a dude who wants to return to the game. It was very real and I think Scott's going to be a great instructor.