It might just be me but can some females be too beautiful? Elle McPherson for example is no doubt stunning, even at the age she's at now, but she's a little too perfect if that's possible? For me beauty isn't just about the way they look, but also how approachable they are, and for me if you saw Elle McPherson in the street I certainly wouldn't walk up to her like I would with others who might not be as nice to look at as her.
If a girl is a 10/10 for me it takes away a lot of the beauty if that makes sense, and while Natlie Imbruglia in this example isn't as nice looking, for me she is prettier because of that girl next door kind of look she's got.