My list of the 33 greatest Indy 500 drivers of all time
Row 1. Foyt, Unser Sr., Mears
Row 2. Mario Andretti, Ralph Depalma, Jim Clark
Row 3. Roger Ward, Louis Meyer, Wilbur Shaw
Row 4. Bobby Unser, Al Unser Jr., Emerson Fittipaldi
Row 5. Maurice Rose, Johnny Parsons, Bill Vukovich
Row 6. Sam Hanks, Jim Bryan, Graham Hill
Row 7. Johnny Rutherford, Gordon Johncock, Mark Donohue
Row 8. Tom Sneva, Helio Castroneves, Tony Stewart
Row 9. Tommy Milton, Parnelli Jones, Juan Montoya
Row 10. Michael Andretti, Paul Tracy, Jacques Villeneuve
Row 11. Dario Franchitti, Lloyd Ruby, Jackie Stewart

I know I've left off some good drivers and maybe included a couple that are on the bubble either way.