Greatest Songwriter of all time


I was reading the Dylan post and it got me thinking. There are many great songwriters that come to mind, my expertise/knowledge is primarily with rock music. If you could only pick three, what would they be? My vote for best lyrics goes to:

Jim Morrison
Bruce Springsteen
Elvis Costello

Best music goes to:

Mark Knopfler
Stevie Ray Vaughn
Frank Zappa
jeffloistarca
Lou Reed, Bob Seger, Steve Winwood, Bill Quateman, Richard Thompson, Susan Vega, Bonnie Raitt, Joni, Grace, 'n on 'n on... God I love this hobby...
Lyriccentric:
Leonard cohen. (Nobody else is even in the same building. )
Townes Van Zandt.
Dylan

Music:
Miles Davis. (" " " " planet)
Shostakovich,
Neil Young

Guy Clark Huh ? Any recommendations for must listens ?
Love to read everybody's favorites. Janis ever write anything?--Hoggy's real claim is just Stardust.--Kris Kristopherson,& Willie as well as Hank Williams are right up there; with so many others doing their songs.--I think the mark of a great writer is having so many record their works.John & Paul sure fit this bill.--(even tho I like Georgie's tunes better--Just about all of them).As much as I love Zep & Floyd; You never hear anybody else doing their stuff.Lenard Cohen has a style I love;but as a writer? Jimmy Webb helped make Glen a bunch of bucks & vice versa. This can go on and on --Next up??
john_l: for a great intro to guy clark, i'd suggest one of his latest, "cold dog soup." wonderful stuff.-cfb