Well they really play (excel at) two different positions. Justin Smith is by far an away the better 3-4 DE, it is not even a competition. In the 4-3 BY is certainly the better player.
I think we are comparing apples to oranges here. As Clyde said, JS and Watt would be a better question.
I think we are comparing apples to oranges here. As Clyde said, JS and Watt would be a better question.