I rescued the love of my life now, Lola she's as big as a male like I said before, loving, gental, and non aggressive, although her prey drive is absolutely crazy. If she sees a "woodland" creature shes gone, I have to use as much strength as I can to hold on to her. She's an amazing guard dog, I would love someone to break into my house only to find a 140 lb. dog staring you in the face growling.
And I agree with you all, if she ever got attacked I think she would wipe the floor hands down