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
Greatest songwriter of all time? Well, it seems that most are caught-up in their own time. Kinda like weather,..geez "winter's aren't what they use to be"...weather has cycles beyond one's own life-span memory ,..100 year cycles, 1000 year cycles..etc...ice ages..etc.

Perhaps I read the question wrong, but it seems that the
"greatest songwriter of all time", is a different question than "the greatest songwriter of your lifetime".

That said, Dylan, Lennon, Fats Waller, Joplin, Jimmy Rodges, and many others have great merit..but one of the great gifts of music..like poetry, is to reach beyond the narcisism of the narrow perspective of ones own 80(or so)year life span.

But...it's is all good, like is said above..there is only music. And your choices are valid..very valid. But music was not invented....or perfected in the 20th century.

Sorry, this will likely just piss people off.
of course bob and bruce rule. i'm surprised,tho, that no one's put any female singer/songwriters on their lists (but for joni mitchell). how about: carole king, ani defranco, shawn colvin, iris dement? and on the male side, how can pete seeger, jackson browne, james taylor, warren zevon, loudon wainwrigth III and greg brown be left off all the lists thus far? -cfb