Just out of curiosity, can someone name the top 10 or so best ballroom dancers and their countries please?
I always liked the answer Rusty Wallace gave one time, when asked who the best racecar driver was. He said that it was probably someone that no one has ever heard of, driving a milk truck for a living, and could outdrive any racecar driver alive if he decided to change professions.
The best ballroom dancers are probably some couple that goes out on Saturday night and dance for the sheer enjoyment of being in each other's arms and twirling around the dance floor. And we will probably never, ever hear about them.
But, if you're looking for ranked professional or amateurs, there are sites that have those lists. Like Anonymous said, check the results from Blackpool and you'll have a good start.