I would definatly recommend the Malkavian for the same reasons Child suggested, but also because it has some of the most awesome dialogue i have ever found in a game. Also, im not sure if it's just the Malk's, but you get options in dialogue which allow you to strongly persuade people, which IMO is pretty cool, kind of like a Force Persuade in a SW game. Again, not sure if it's just Malks though...
Oooh, and also female, better to look at for a long time than a spiky-haired male