My vote goes for Chet Lemon.
He was a great center fielder. He could hit, steal a bag if he needed.
His career WAR is 55.7. I know WAR has limitations, but it is higher than HOFers like Joe Mauer, David Ortiz, Hank Greenberg, Tony Perez, Kirby Puckett, Jim Rice, Lou Brock, Harold Baines...