Its important to do the research. Short coated breeds, presa rott..etc. Are good personal protection dogs. Due to that they stay by your side. There is no best dog. Just what are you are going to use them for. And finding the right individual for the job. Caucasians and other livestock guardian breeds have an independent nature.Which has been stated before on this site. And require different type of training. I might be generalizing, but others may chime in. Here is some food for thought on having a guard dog:[link=hyperlink url][/link]//www. rottweiler-int.com/puppies.html[link=hyperlink url][/link] Richard