Quoted:
Australian Shepherds, Border Collies, Dingos,cross-breeds of the above, are all round good dogs, don't eat all that much, and live fairly long lives. They can do a lot of different things pretty well. Good with kids, by and large, if you work them in pairs, they'll pack a pretty good fight into a small package (they do teamwork very well)
Rotties, Alsatians, mastiffs, Poodles (standard), good fighting dogs, good guard dogs, good pack dogs, but they eat alot, shit alot, and live fairly short lives (well, Poodles tend to live longer for some reason, but they've got their own problems).
Toy Poodles, Chihuahuas, etc... alarms that pack light, don't eat much, and live very long lives.
I'd stay away from Dobies and be leery of Pit Bulls (though properly brought up Pits are great dogs, they do have some bad habits you have to watch for)
I did some research on this topic for a book once and came up with the Bull Mastiff as the perfect post-apocalyptic breed. Can't remember all the reasons, but it seemed a good combination of temperament, strength, intelligence, and life expectancy.
Pretty interesting choice.
I used to own a Boerboel (which is essentially a South African farmer's mutt). This "breed" has some heavy influence of Bull Mastiff and Rhodesian Ridgeback, with smaller quanities of all sorts of stuff (Weimeraner, some lines had Irish markings of who-knows-what). What I found with my dog was that she had a super-high defensive/fight drive, low prey drive and took corrections personally. Temperament with my dog was fantastic. She could go from a sleeve bite to licking a kid in the face in under 10 seconds. My kids would play dress up with the dog and paint her nails. She was solid, and not a fear-biter. She was extremely dominant however. And, she really didnt eat all that much for a 90-pounder. She would catch wild boar (trial in a bay pen), and she brought down a cow (first time she saw one, she grabbed it by it's lip and took it to the ground at a herding trial––––-oops!
). When I took her to the bay pen to see if she'd catch, the idiot jumped over the fence into the holding pen with over 30 wild boar to still go after the one she was just chasing!
. The guy running the bay pen said he'd never seen anything like it.
All that being said, the average Boerboel is garbage. There are maybe 2 breeders I'd ever get a Boerboel from, and they are here in the US. The South African breeders just import garbage.
Personally, I'll probably never own another Boerboel. It broke my heart to have to re-home my dog. I had one of those "it's me or the dog" situations, and I should have kept the dog instead (i just got divorced).
The dog is in excellent hands now, and she is happy. The new owner is a former cop and does training with his dogs. He also has a CAO, that is my old dog's playmate now.
I'd probably get a Black Mouth Cur (out of herding or hunting parents) or a Bandog with a functional working mastiff influence (pretty much limits selection to Am Bulldogs) x Dutch shepherd mix.
I want a short-coated, dark (preferably brindle), 60 to 80 pound dog, that isnt yappy and will remain calm. I dont want a German temperament dog (alpha––-think Rottweiler), but an English temperament dog (think bulldog––-laid back, but when it is time to work, will work). I want a dog with a medium prey drive (not off the charts like a Malinois––-they are psycho), good nose, deep chest that can run. I also want a medium-high defensive/fight drive, and absolutely no fear biting (i will kill a dog myself for this). A good herding instict/catch instinct is a plus.
I dont care too much for ACD's and Heelers. Personal preference. If i send my dog to bite somebody, I want their whole body to be a target, not just their ankles.
One man + one dog = three men