Lets see, the one on the left has a brain, is a great swimmer who can catch fish easily and doesn't have to be underwater to breathe.
The one on the right would be a terrible swimmer, could only catch fish in its mouth, has no arms, has to stay underwater to breathe and would probably be eaten while living in the water.
I would choose the one on the left by far. Those of you who would choose the one on the right have your priorities wrong and would not survive a zombie apocalypse.