Who's more killer, the great white shark or the killer whale?

Ya thats true.. Killer Whales have an ability to kill The Great Whites... But often they donot attack them... Infact Great Whites are more aggressive than Killer Whales.. The Great Whites have a higher testosterone levels which makes them the most aggressive among all the fishes.. Some killer whales do have higher testosterone levels which makes them very dangerous... But most of killer whales donot attack humans often.. They generally attack Penguins, Dolphins and Sea-Lions.. But the Great white sharks often attack humans and r more dangerous than the killer whales...

Yes Willy was good and friendly, but that was a movie. In the wild, killer whales are not always friendly. They can be tamed, like Shamu, but they can be very dangerous. they do have the ability to kill great white sharks. They also eat meat. have been known to attack humans as well. So it's not the question, who is the biggest killer, but who can be tamed more. And we have not been able to tame great whites. They don't live very long in captivity, so unfortunatly we have not had the time to do controled tests with them.