Jerel Worthy is only good at splitting gaps and penetrating. Only fit is in a 4-3 1-gap system. Not the type of guy who can push the pocket or hold up in the running game when he doesn't win with his explosive first step. Nevermind his inconsistent motor, which could be contributed to a lack of conditioning.
I'd go with Still as the best overall and complete pass rusher. While far from a finished product, he has the ability to split gaps AND win with power when a lineman gets his hand on him, unlike Worthy. He also has very good instincts, run defense, and is quite versatile in a number of roles/positions.