The polar bear's superior land mobility and striking power edge out the croc on neutral ground.
On land, the polar bear is significantly faster and more mobile than the crocodile. It can use devastating paw swipes to target the croc's vulnerable eyes and softer areas. In water, the croc dominates with its death roll and ambush capability.
On neutral ground (shallow water or shoreline), the bear's 1,500-pound frame and ability to fight on hind legs give it advantages the croc can't counter with its low-to-ground body plan. The bear can potentially flip the croc to expose its softer underside.
3,700 PSI bite, armored scales, and the death roll. In water, the croc is the more lethal fighter. Its ambush capability could catch the bear off-guard.
The polar bear is faster, more agile on land, and can use paw swipes to target the croc's vulnerabilities. At 1,500 lbs, it's comparable in weight and can potentially flip the croc.
Slight edge to the polar bear on land or neutral ground. In deep water, the croc dominates. Since most realistic encounters would happen near Arctic shores, the bear's land mobility gives it the tiebreaker.
Saltwater Crocodile also fights
Polar Bear also fights