A bull will win because mooses are weak very weak
a mountain lion of coarse
A moose.
Werewolf
A crocodile and a bull moose would never meet in the wild, but even if they did fight, either may win. A saltwater crocodile would beat a bull moose in water because of its 2000 pounded weight, sharp tough skin, and enormous size with the jaws. If they fought on land, the bull moose could trample the saltwater crocodile to death, but the saltwater crocodile might be too heavy and too big for the bull moose to kill. Even though the bull moose on the rut can kill a grizzly bear or a brown bear, the saltwater crocodile could drag an alive polar bear to the water and drown it! Saltwater crocodiles are like the strongest creatures on land and water!
the bull
Probably the moose.
The hippo would win because it is much stronger and more powerful. The moose's hooves or antlers (if it is a bull moose) would not do anything due to the thick hide of the hippo.
The moose, especially if the moose is a bull moose on the rut, would knock out the two men easily if the two men do not run away fast. Moose are standing quite taller than a human and can even send a grizzly bear flying. Even if the two men had knives or clubs, the moose (if the moose was a bull moose) would gore the two men with its large antlers to death and tear them out.
The bull would win, unless the polar bear bites its face or claws the bull down.
Moose. Everybody would think that the gorilla would win, but those sort of people have never seen or heard of stories of how moose can fight and defend themselves. A cow that is protecting her calf or calves or a bull on the rut is far more dangerous to a gorilla than most people think. Moose have their long legs and sharp hooves that they can use to strike out and rip the gorilla to shreds, not to mention those huge antlers that can be used to flip the gorilla around like a rag doll. A bull on the rut will charge at and battle with anything, and win most of the times, even if it's against a gorilla!!
The question depends on the quantity and strength of the wolves, and the strength and health of the bull moose. Usually, a pack of wolves (5 or more wolves) would attack and kill a young moose or an injured moose that is too weak to fight any longer. Wolves always look for weak animals for them to kill, like an injured moose. Even if the wolves attack a healthy, strong moose, the wolves would win but they would get some members injured. Bull moose can sometimes drive off a pack of wolves if they are large and the wolves were not eager to fight down it. But bull moose can also kill or fend off a pack of wolves if they were strong and healthy enough to do so. Bull moose are pretty aggressive and powerful enough to kill grizzly bears or brown bears, which makes them quite dangerous enough to fight off a pack of wolves. Ten or eleven strong wolves are enough to bring down a healthy, strong rutting bull moose if they avoid the moose's hooves/antlers, and gave painful bites to the hamstrings.
Elephant.