The most prey driven dog I have ever had is my weenie dog. That is a shocker if you are not familiar with dachshunds. I wasn't either, she is my first weenie. But after all they were bred to be badger hounds. Almost everything unless it's another dog or a human is prey to her. She is a powerful hunter. Some people on the dachshund group online DO hunt with their weenie dogs.
She has caught and eaten rat, squirrel, and helped the other dogs kill even more. My other two don't actually eat anything, but miss Ayla does for sure.
Power driven one minute and super cuddly the next minute, both Ayla and the breed is awesome. Not for everyone obviously, especially because of their backs, but definitely an awesome breed.