will888 ask your self which breed of fighting dog is the one used all over the world? The answer is the bulldog, it used from North America all the way to South America, it is used in Europe, and many of the country's where they have their own fighting breed, Japan, Turkey, Russia, ect. This fact alone shows that the bulldog is the best fighting dog breed, also the bulldog game is a scratching game, the Tosa is fought with different rules, no emphasis on scratching.