My top two would probably be Okiku from Afro Samurai, just for her voice in the english dub, and Major Kusanagi from GITS SAC, but I'm fairly sure she would be able to literally crush me...
I can't think of any more... do video game characters count?
Kamina from Gurran Lagann :3
Vash the Stampede.
Zoro from One Piece.
Alucard from Hellsing.
Threesome with Ai Amano and Yota from Video Girl Ai.
Chrono from Chrno Crusade.
Nobu from NANA.
Cynthia/Shirona from Pokemon
Miss Fortune from LoL
Adrian Andrews from Phoenix Wright
Mitsuru Kirijo from Persona 3
Fiora Laurent from LoL
Major Kusanagi from GitS