Akita vs Doberman Pinscher

The AKC's own breed standard warns that Akitas 'may be intolerant of other dogs, particularly of the same sex' — that's not a rare temperament quirk, it's written into the official standard, and it's a major reason the breed is refused or surcharged by roughly 4 in 5 home-insurance breed-restriction lists.

A widely cited European study found that 58% of screened Dobermans had dilated cardiomyopathy, a heart-muscle disease that can cause sudden death with no warning signs — buying from a breeder who actually health-tests parents with a Holter monitor and echocardiogram, rather than one who doesn't, is arguably the single biggest decision a Doberman buyer makes.