Iv had a Rottie, a Rottie cross and also an American bull dog. The American bull dog had the most stamina, power and drive when breeding. He would drive his sex into his bitch with such passion..
How ever all three of them were all very nice dogs and had lovely personalities. Also very protective of the property, their Master and of course protective of their bitch. Didn't like other males human or k9 near his bitch, except for his Master.
Currently have a gsd still maturing.
