Unsurprisingly, Posnanski reminds me of perhaps the thing I like best about Halladay -- his control.
In 2003, when he first seemed to grasp his powers as a pitcher, Halladay struck out more than 200 batters (204, to be exact), and he walked fewer than one batter per start (32 walks in 36 starts). Only nine men in baseball history have done that over a full season.
Seven years later, in 2010, when Halladay was 33 and an established legend, he did it again. He struck out 219, and he walked 30 in 33 starts. Only one other pitcher in history has pulled that feat twice, and that was the man whose award Halladay won in each of those two seasons, Cy Young.