less among Royal (UK) and ABT(American Ballet Theater).
If you compare ballet " Romeo and Juliet" between Royal and Bolshoi, you'll see the differences. In my opinion, the differences is huge.
I have to go, will be back later to check the post.
When i have time, i'll post some revolution dance for you, from French revolution, Bolshevik, to red China. It's interesting to see where China's revolution dance came from....