Chuck, I think you took what I said out of context. All I did was question why in this day and age a Neapoitan Mastiff would be considered to have a harder temperament than a Presa Canario. How many videos of Neos are there on Youtube doing PP? Compaired to how many Presa you see doing PP? As far as the Fila, I agree that a true Fila should dislike / hate strangers and should have the hardest temp overall. Never had any question about that. But as far as putting the other breeds in order Rotti, Cane Corso, Tosa, etc. I think there is too much diversity in these breeds to put one over the other. Like I said it all depends on what the breeder strives for , the lines they use, as well as the individual dogs in the litter. You could have a lot of diversity in temp in the same litter ( some will have harder temps while some will be soft and more submissive). I hope that makes sense? P.S Chuck where do you find thes Neapolitan Mastiff with such distrust for strangers ? Lines? Breeders?