Usually the problem with female vocals are that they often sound quite same, there's alot of exceptions, of course. Also, one major point is that female singers often stick with pop and country music, so their full voice scale is rarely being used. with female leads, one which hits me is lacuna coil. I don't know why. But with male singers there are alot of those whose singing makes you shiver in a good way - IMO my personal favourite is system of a down,their duet songs are just a delight for my ears. yea, just flame me but I really also like robbie williams and tom jones. I think they still have awesome voices, whatever you may think about them. I still pity the states for their lack of robbie williams, he has sold like more than beatles in the europe, right [click for his duet with kylie minogue] Also, Till lindemann (sp?) of Rammstein has such a cool voice too