For the record......
bob Dylan is most noted for his sing writing, not his singing, not his instrument playing (although he does a fairly good job on the geetar)
Since, back in the day, everyone had to have a dylan song to do and some of them have been covered by multitudes of artists, I would put him on the list of one of the most prolific and sought after song writers, which does not necessarilly make him a great musician.
Edited in:
http://www.baseportal.com/cgi-bin/ba...=1&range=0,100 lists over 12,000 covers of Dylan tunes and they are not complete........