I like both breeds, but from the research i have done, presas are not a breed for even experienced owners. You need to really know dog training to own a Presa, and even then they can be a handful. dogos are bred to be family dogs as well as hunters (pack hunters at that, they are not supposed to be dog aggressive), but not gaurd/watch dogs. presas are gaurd/watch dogs, and therein lies the difference. I have a ton of dog experience, i'm on my way to being a certified trainer, and i really don't think owning a Presa is a great idea unless you live somewhere where you have a lot of land. I don't think they are bad dogs by any means, i think they are great, but they are a handful and a half. Dogos are pretty chill, natural heelers and take to orders/training very well.