According to Random.org's random integer generator, the winning comment is #7, written by Jessica, who said,
"Looks fun! Our oldest -- 4 1/2 -- is all about monsters lately. He'd LOVE this! :)."
Congrats Jessica! Be on the lookout for my email. Thanks again to Andi Green, creator of the WorryWoo Monsters, for generously sponsoring the give away. And thanks to everyone who entered!