5. Arnold Palmer
Arnold Palmer won 62 times on the PGA Tour, including seven major championships. He helped invigorate golf as sport and entertainment with his go-for-broke playing style, and helped revitalize the British Open simply by showing up to play that tournament. At his best, he was one of the best putters of all-time. There is a drop-off from No. 4 to No. 5 - for any of the top four golfers on this list, an argument can be constructed that they should be No. 1. But Arnie tops the next level of golf greats.