Well here's a list of vampires being slain.
http://myanimelist.net/anime/343/Tsukuyomi:_Moon_Phase
Well there are good and bad vampires in this.
http://myanimelist.net/anime/2130/Princess_Resurrection
http://myanimelist.net/anime/6920/Blade
Based on the marvel comic character...
I'm sure I've seen this character more than once but can't find a name or a anime/manga.
Could be a fan made character but I'm not sure.
http://cdn.myanimelist.net/images/userimages/46798.jpg