All time favorites would have to include:

Tom Russell, Bob Dylan, Woody Guthrie, Leonard Cohen, Kate McGarrigle, Anna McGarrigle, Bruce Murdoch, James Talley, Tom Paxton, Ian Tyson, Stan Rogers, Dave Van Ronk, Jelly Roll Morton, Brownie McGhee, Utah Phillips, Rosalie Sorrels, John Stewart, Hoagy Carmichael, George Gershwin and Duke Ellington.