I agree with Jessifer about Washu. I also like Kiyone from Universe.

Well, I guess I'll do a new list:

Lina Inverse (The Slayers)
Jet Black (Cowboy Bebop)
Himura Kenshin (Rurouni Kenshin)
Saitoh Hajime (Kenshin)
Onizuka (Great Teacher Onizuka)
Tsukasa (.hack//SIGN)
Justy Tylor (The Irresponsible Captain Tylor)