I've got one now, actually one and a half. They say in the major write ups, they are people oriented dogs, which I generally find to be a crock.
I'd say 95 times out of a hundred you put the owner in a lineup, with a dozen dogs and the Bull is going to one of the dogs first, no matter what kind of noises the owner is making.
Mine is just part Staffordshire, maybe half, the rest is Beagle and Jack. He is nose dominant (beagle), strong prey drive (Jack) and fearless (staffordshire). His daughter is half Jack Russel and a born earth (burrow) dog.
You really have to pay attention to which line they are from. They may look the same, but may have very different temperaments. Both my male and his daughter lock on and refuse to let go when biting. I have to pry their jaws open.
If I was to ever get another, I'd make sure I had a long visit with both parents.
You also have to figure out what is the most important to you, the chase, the catch or a tracker. Hard to find it all in one package.
The one I have now has a strong prey drive and goes pretty much Kamikaze. He is pretty much a killer. He eats Hedge Hogs, which are spiny rodents. The inside of his mouth looks like hamburger when he is finished, which hasn't stopped him yet. He only weighs 25 pounds. His strong prey drive overrides any common sense he may have. He picked my youngest son as his master, but spends 95% of his time with me.
He killed the next door neighbors German Shepard. Grant you the Shepard was old but was twice his size. I was walking to the car with him in my arms and the Shepard came after me, not the first time and I let him go. Told the neighbor sorry, but your dog has bitten me before and I wasn't in the mode to get bitten again.
Shepards are generally people sharp, Bulls are generally dog sharp. Both may or may not have a strong prey drive, it varies.
An *old school* American Staffordshire may be a good choice, you just have to make sure of the bloodline. Mid West (farm dog) stock may be a good place to look.