Breed with the strongest bite PSI. Actually there were a lot on that list that were higher. And forget the rumor their jaw can lock. It can't.
The actual danger is in the dogs who aren't taught or haven't learned through being with their litter long enough to learn bite inhibition, or those who've been abused or poorly bred. As well as those who've been trained with adverse methods.
Those ones will bite a lot harder and more bites than just one. An attacking lab without any inhibition can be just as dangerous as any pit. The danger is rarely ever in a breed itself-it is in breeding, how they're raised, and how they're treated and trained. As well as being neutered. Unaltered males are accountable for more bites than fixed dogs.
There are a ton of factors that go into dog bites and attacks, and one of the biggest is NOT breed. Pits are inherently no more dangerous or vicious than any other breed.