Who'd win a fight polar bear or salt water crocodile?

Killer whales can kill which animal in the ocean they want. If it is 1 animal the orca would be even with, it would be the sperm whale. Killer whale beat saltwater crocodile. But in a fight between orca and croc, i would give 80% to the orca and 20% to the croc. In the worst case, 60% to the orca and 40% to the croc. They're little even in all cases. Before I thought 40% to croc and 60% to the orca. But now i think 80% to the orca and 20% to the croc.