Had an argument with a guy at work as to whether a polar bear could beat a gorilla. He could not be persuaded that a 600kg apex predator would fuck up what is basically a fat guy who eats flowers...
If polar bear would fight in the jungle it would get hot and go to drink water. At that time it would be completelly open for suplex from the gorilla.
And if they were to fight on the ice sheet the gorilla would not have any trees where to hang tire swing and he would get depressed and unintrested to fight. So in the end it boils down to what kind of social services and safety nets are in the arctic and can they help primates like 1989 released Belgian techno anthem Pump up the jam can help humans.
Say what you want this is is an interesting thought, although the polar bear would most likely win because of its sheer mass. The gorilla has a lot going for it. A silverback can get to almost half that weight and has a greater bite force, intelligence, agility, and reach. They can also throw punches of up to 2300 lbs of force, which could easily break a bone or skull.
It'd probably be pretty easy to convince them if the two were next to each other for scale. The biggest orcas can grow to twice as long as the average great white.
The one on the left is probably bigger. That's not a photo of a great white, but an artist rendition of a megalodon.
Would it win though? I have doubts. Especially in light of the macroraptorial sperm whales like Livyatan. But I'd never bet against a pod of orcas vs almost anything.