There is nothing like a Dame.

And by Dame i mean:
A woman who knows the difference between Sexy and slutty.
She is comfortable with her herself as a sexual being, but doesn't excessively flaunt her sexuality. She understands that what is suggested is far sexier than what is shown.
Intelligent
Self Assured
Stylish, but not a slave to the latest fashion fad.

Some examples:

Nicole Kidman = Dame
Brittany spears = not
Catherine Zeta-Jones = Dame
Carmen Electra = not
Jessica Rabbit = Dame