Personally, I don’t see a winning line in that scenario.
10,000 rats seems like the obvious choice for one. Given enough time, they’ll wipe the floor with any of the other competitors (outside of the hawks). HOWEVER, you don’t have unlimited time. You have maybe 30 seconds before one of those animals is going to be on you. And 1 of any of those things (outside of the hawks) will be enough to kill you, let alone multiple number of those animals.
Multiple ones will also kill the Hunter with a rifle. They may be able to kill a few, but they’re not dealing with 15 wolves, 7 Buffalo, 3 bears, etc all attacking at once. No shot, regardless of the gun. HOWEVER, in that same vein, having the Hunter on the side that’s attacking you is also likely instant death for you. You’ll be focused on the animals attacking you, leaving them all the opportunity in the world to kill you.
Finally, we have the hawk problem. 15 hawks attacking you will likely kill you within an hour. The Hunter is the only choice that has any capacity to attack the hawks in the air. But, the hawks also have no ability to protect you from any of the other animals. So you can’t have them on your side and expect to survive, nor can you have them on the opposite side and expect to survive.
The best case scenario that I can come up with is choosing the crocodiles and the bears to be on your side and then retreating into the water. None of the other choices are nearly as effective in the water, and if you stay low and protected by your animals, you can avoid the Hunter shots and the hawks. Maybe replace the bears with the buffalo, depending on the species of each.