Bongo . As Hemingway said once you have hunted man the other animals that can kill you don't seem as intimidating so for the danger aspect there is no comparison ,to me anyway. I voted Bongo for the animals elusiveness ,it is like hunting a ghost. A hunters skill, patience and perseverance must be at a very high level to bring one of these home. Some hunters spend an entire lifetime trying to get one . Spending weeks at a time with nothing more than a pack a rifle and bare essentials sleeping out in the open to get one of these elusive animals would be my dream hunt.