Is Bob Dylan a poet or songwriter?

There is an article on poets.org about Bob Dyland and whether or not he should be considered a poet.. something that I've kinda wondered about with a few songwriters like Dylan. Some interesting excerpts:

Christopher Ricks, who has also penned books about T. S. Eliot and John Keats, argues that Dylan's lyrics not only qualify as poetry, but that Dylan is among the finest poets of all time, on the same level as Milton, Keats, and Tennyson. He points to Dylan's mastery of rhymes that are often startling and perfectly judged.

Dylan has been nominated for a Nobel Prize in Literature every year since 1996, and the lyrics to his song "Mr. Tambourine Man" appeared in the Norton Introduction to Literature.

So he is a poet? I'd say "yes".