Saphira Yami
Chobits to me was probably the worst.
Maybe that's because I'm a woman but still.
It was adorable at first then it got really sexual and can tell a man made it sweatdrop
Actually, it was created by CLAMP. All four of them are are woman if I'm not mistaken.
As for worst anime...Darker Than Black (only the second season, season one was amazing), The Melancholy of Haruhi Suzumiya, Inukami, Naruto, Bleach (with the exception of the first movie and the first couple of seasons, it just dragged on too long and killed itself), Dragonball GT, Tsubasa Chronicle (the manga is fine), X the Movie, Origin: Spirits of the Past (lovely soundtrack though), and SD Gundam.