According to Environmental Grafitti the Tasmanian Devil is one of the 7 smelliest creatures in the world:
According to some who have encountered it in the wild its stench can never be forgotten. It’s said to reek of death which, along with its ghastly cries and vicious feeding behavior, may have given it its reputation as a fearsome creature. In reality, the devil is shy and solitary and doesn’t generally go around stinking up the joint. They aren’t even particularly prolific hunters, preferring to get together and chow down on carrion. It’s only when the devil is agitated that it starts to produce its horrible smell.
The photo above is taken from the wikipedia site.