Well I have 5 Tm mastiff & 2 Maremma as far as big breeds go atm but have had neos, rotties & shepards as well & grew up arong bull arabs & different pigging breed crosses. My TM's guard the boundries where as the Maremmas stay closer to the house & sheep. The TM dose not mess about it's all or nothing & he seems to kill with little to no marks on fox or wild dog yet the meremmas just seem to scare them off. TM's make their own desicion mainly but seem good at it thank godness. The rotties where like littel soilders & would do anything for me. Neo's I found a little slow till I added some bullarab to the mix. I love Aussie bandogs in general.