OK, are we including cheaters? Or, ahem, alleged cheaters? If so, it's hard not to go with Mr. Steroid Scandal himself, Roger Clemens, with his 354 career wins, 3.12 ERA and 7 Cy Young Awards.
But if we give him the heave-ho — let's do — my vote goes to Greg Maddux. Let the stat geeks howl about Cy Young's 511 wins or Walter Johnson's 417 — fans were still pulling up to the ballpark in buckboard carriages when those two pitched. But if you believe baseball...