Probably no one. Anime characters are too eccentric. And Anime girls often beat the hell out of men. But I guess if i had to chose I would go with Tenma Tsukamoto from School Rumble. Mainly because shes not too violent and she'd be fun to be around.
Roll - Megaman
Sango,Kagome,Ayame - inuyasha
Naruko,Ino,Haruna-hime,Yukie-hime,Yuugao,Kurenai... etc - Naruto
most of the women - Bleach
Hiromi, Momo, Maho - Beck
Kururu, Ringo, Simca - Air Gear