Book excerpt: Just who was the greatest baseball player of the 20th century—Ty Cobb, Babe Ruth, Willie Mays, Hank Aaron? It's difficult to choose just one of those players over the other three megastars. Then think how really hard it is to pick (and rank) the hundred greatest players of the century, judging and juggling position players, pitchers, active players and retired ones. The authors of this work looked at statistics, the different eras, the “five tools,” and even oral legend in compiling this list of the 100 diamond dandies of the second millennium. They've ranked the Negro League players and superstars from around the globe alongside the Major League legends. Some of their choices may surprise even the most learned fans. Year-by-year playing statistics (if available) are included for all players.