The American Bulldog has so many wonderful traits you could go on forever. Color is something that seems to have become a point of controversy in some areas of the bulldog world. I personally look at the dog instead of his color. John D. Johnson and Allen Scott say the same thing and they are the founders of the breed. If you find the right real american bulldog, buy him no matter what the color.
Conformation is also a bone of contention.
I ran into an excellent article written by Vito Alu describing the three main types of american bulldogs and what is wrong with all three. Now you can bet this will make everyone mad when their type of dog is criticized. But, we must all realize that our dogs are not perfect so we can continue to improve the breed. The breeder who thinks his dogs can't be improved on should get out of the business now. I will insert this entire article at a later date as it is interesting reading and could be of great value to some people and it includes drawings of structurally correct and incorrect bulldogs.