There is a provocative and interesting article in today's NY Times which discusses ballet dancers as "brands".
The issues discussed are at the heart of what some people are complaining about at ABT - namely, that it relies on "brand name" international stars, and thereby frustrates the development of its own "in house" dancers. The article questions whether there is such a thing as a unique company style anymore.
In my experience, I have noticed striking differences in the way other companies perform Balanchine as compared to the NY City Ballet, and those differences continue to exist despite the "globalization" of ballet.
I was amused by Osipova's comment that "so far" she intends to stick with the Royal Ballet. I don't have a problem with dancer's doing guest stints all over the globe, but her switching companies 4 times over 2 years, and breaking various contracts in the process, is a bit much.