Orcas can swim faster and they can atack from all sides better while sharks can only atack good from one side .
Sharks can smell better but orcas have ecolocation
Witch is as seeing with eyes. so if an adult orca got in a
Fight with a great white shark the orca would win.
And the orcas brain is bigger .you dont see sharks
doing tricks in movies like the Free Willy movies.