If I had to win, I said win, one ballgame and could pick any pitcher to do the job, Bob Gibson would be one of only two or three guys I'd even think about. This article at ESPN.com tells you about his amazing, historical 1968 season.
You don't hear a lot about Gibby anymore and, even though he is highly regarded, I still think he's underrated, even forgotten by most baseball fans. I don't think his dominance is as appreciated as it ought to be.
But they all appreciated him in '68.