I would rathr rely on people who knew the two of them. i think there is a vast difference in their songs.
MacColl songs are quite clear generally well written and make a pointclearly .
Dylan in my opinion, songwriting is less consistent, ,Dylan specialises in trying to be obscure, "its up to you man to make youir own meaning of the song , man"
Dylan often did not deliver a message WAS INTENT ON COMmERCIAL SUCCESS. AND for the last 50 years not a very good singer,possibly as a result of his accident