The Neopolitian Mastiffs, Tosa Inus and The Brazilian Mastiffs don't really appeal to me....I prefer fierce looking dogs, Spanish Alanos are good...Rottweilers have always been a favourite, but I have always been a bit nervous owning one....Also Pitbulls but they are illegal in the UK....people always get the wrong idea about pitbuls because they aren't fiercer than the next dog, but its just because of the way some people train them to fight...with all the drugs pumped into them and all that