I really don't want you to take this the wrong way (Don't you love when sentences start out that way?), but why are you looking at getting another dog when you said Zima doesn't get along with other dogs? I mean honestly it's a dog to dog basis, and no one can make a judgement over pictures or breeds, but Akitas are generally not very dog friendly, and you already said that yours doesn't like other dogs. I have to agree with Babs, Akitas and Pits are very powerful dogs, and I'm not saying that you can't handle it if something goes wrong, but why set yourself up for it? Just my opinion....... ..
Ang