Better FF Free agent pick up?

I am in need of a WR to pick up....Mike Williams/DET and Donte Stallworth/NO are both available. The big thing I noticed and was suprised to find out was that Stallworth has never scored an NFL touchdown. Mike Williams has 1 career reception but for a TD. Stallworth will be returning punts as well so he might be able to muster up some points there. Anyone have any suggestions?