I would disagree, internet/ forum politics maybe.. but in person over the phone etc. you hear and see cafib speaking with cbkc and vice versa. They may disagree but conversations are civil and backed with proof pictures and showing of dogs, productions etc.
Cbkc folks in Brazil are using cafib dogs, you speak with cafib folks who say such and such dog has great structure and movement I love the angulation and bone density in the dog which happens to be non cafib.
Im a temp, nerve, drive guy first in any breed I have or work with. My idea of a perfect fila would be the biggest I can get it without compromising hips, and movement, and athleticism. Type one temp and early development of it. I love the houndy long ears and head and ability to jump 6ft high in the air all wrapped up in one dog.
I'd agree whole wholeheartedly that the most impressive filas as far as temp, drive, dominance, civil aggression, etc have for the most part been the ugliest filas I've seen. Skinny, short ears, snippy muzzles, long legs in comparison to body. If I had to choose that our a show stopper I'd go with the ugly duckling all day everyday.