Answer is the salt water crocodile.
Alligator has small legs with webbed feet. This enables it to swim under the water and walk on the land. Crocodiles also have a similar body structure like the alligators. They can also swim and walk. The alligator has a huge jaw with sharp teeth that can deliver a bite that damages internal organs of its prey. But there is a difference between the bite forces of alligator and crocodile, the crocodiles are bigger than the alligators, their jaws can deliver much more powerful bite than the alligators.