Greatest Songwriter of all time

Dylan and Tom Waits.

I also like Andy Partridge of XTC.

"In fact occassionally one tune would be so good he'd use on about 6 or 7 different songs....."

That's funny. I've heard it said that every band just writes the same 7 songs over and over. I think that might be true.

Gene Simmons

Tiny Tim

Diane Warren

MIKE DROP

Three best of all time is a pretty high bar, but I certainly appreciate the lyrics by Bob Dylan, Bruce Springsteen,  Steve Earle.  But that leaves so many out, such as Townes Van Zandt & so may more that if I thought about it might be in my top three.

Jack White.

Muddy Water.

BB King.

John Lee Hooker

Ray Charles.

Johnny Lydon 

Johnny Cash

Joe Strummer

Bob Marley 

Toots Hibbert. 
Robert Fripp

Willy Nelson