Great Teacher Onizuka
At first I was skeptical about this series but it turned out to be really good
My favorite character is Urumi Kanzaki (the blond genius girl)
My favorite part is when the Gundam otaku's are talking to her and she has no clue what they are saying. She has an IQ over 200 and can speak 5 different languages yet she couldn't understand them at all XD
And she is also pretty bad a**. She's definitely somebody you don't want to mess with