Gotta disagree on the badger vs wolverine match up Bulldog.
Wolverine are bigger, can break bone and quite well known for being the meanest little critters in the woods. The badger is a close second but they're omnivores where as the wolverine makes his living killing and eating anything he finds, including other wolverines. It's why they live alone most of their lives, they don't like their own kind.
I'm biased because I'm from Michigan but the wolverine wins in a close fight...