Like it or not, I would say that most companies look for very slender ballerinas, at least at the soloist level and above. I will go out ona lmb, but I wuld say you have to look pretty hard to find a top female dancer in a major compnay over 125 lbs, and at some companies, I would say the weight the dancers are shooting for looks to be more like 105 lbs. I am not quite as conviced that this is solely due to the evil Aritstic Directors looking for the stereotypical body type, although I am sure that is a factor. Other factors may be that a 5' 6" woman dancers set point is 105 lbs if she is working out 6 hours per day. Another, more controversial explaination may be that,to a point, the thinner you are the better dancer you are. This isn't such a radical idea, and I would point out the the grave girl

Gelsey Kirkland - despite her struggle with anorexia, was a very strong dancer physically and could lay a legitimate claim to being one of the best dancers ever.
That being said, I personally prefer dancers with that healthy and strong look( PNBs principles come to mind ), vs several much more thin international dancers (Savez-vous?

).