Hippos are crazy territorial, so my money would be on them. It's hard to imagine a rhino losing the battle, but the pure unfiltered rage of a hippopotamus when you trespass his territory will frighten even the boldest of rhinos.
I'm surprised everyone is betting on hippos.
Rhinos are bigger (generally), heavier, move faster, have collagen armor, and have a horn.
Try getting angry at 3,500kg of pointy faced Rhino moving at 50kmh and see how much that helps.
Rhino's have low intelligence, can't swim (well), hace poor eyesight, and are smaller. My money's on the Hippo.
Well rhinos are often bigger, but that won't help them enough.
I feel like thr hippo just has a higher ring IQ. Like, rhino has got the nose but I think the hippo would just controll the pace of the fight so that it couldn't come into play
Hippo would drag him into the water and drown him in a death roll
