From the TV series, Maggie. Because she's tall, dark and handsome?
Nah. Because she's just such a clumsy dork
She cries when she's not allowed to read or Anita yells at her, her favourite hideout is the cupboard under the stairs, and she's so socially inept that it's fantastic. I love her idea of cleaning ('A tidy room is an empty room' or 'If it ain't a book, throw it out!'), it works quite well for me too.
Nenene's also a great character. She gets some great lines, so sarcastic and biting. I love her attitude; she manages to be loud and abrasive most of the time, yet she still has her softer compassionate side, to flesh her out nicely.
From the OAV, Nancy's my favourite, simply because she's got the whole 'invincible super agent who can phase through solid objects at will' thing going, and she's the cynic to Yomiko's unbridled optimist.
Just because it's in the thesaurus doesn't mean it's a good idea.
And why isn't 'dethesaurisation' in the dictionary?