Not quite sure what legion1 is talking about with "banned" episodes, unless he means banned in England. The "Green Lady" wasn't from a "frightening" episode. She was, instead a human woman made to look like an Orion slave girl; one of the illusions forced upon Captain Pike in the original pilot, "The Cage," and then shown later in "The Menagerie."
All in all, I'd have to say that "What Are Little Girls Made Of?" is the better of the two episodes, with little snippets of humor throughout; such as Kirk's comment to his android duplicate, "Eating is a pleasure, sir. Unfortunately, one you will never know."