I think Lenda, Bergmann, Chepiga, Heather Lee (can't remember her new name), and a few others look like absolute goddesses - they carry their mass like queens and they deserve a great deal of respect for the incredible dedication they have for what they do. If it were a look achieveable without drugs, or even without copious amounts of drugs, you can be sure I would be in there, working my butt off for it.
That said, though, I have to admit that the genetic question comes into this a lot, because a lot of the top female pros, who obviously ALSO work as hard, simply look bad the size they are - I'm not sure if it's the size itself, or just the way it looks on particular people/frames.
I think that's the key really - some people can carry it, others just can't.
My 2 cents.