Great, he has the highest BA. But that is the least useful batting rate statistic. You want something that measures all of it? RISP, C&L, etc.....and gives credit for extra bases, stolen bases, et al? Look at WPA. Win Probability Added.
Pujols - 550
Ortiz - 340
Dye - 326
Jeter - 317
Bonds - 286
Jeter is having a good year, but Ortiz is still a bit better in the clutch. Besides, the premise of the article was based on performance prior to this year, so Jeter's performance this year is immaterial. WPA is fairly new, so I don't know where to find previous seasons' perfomance. If that was available, we could see how 'clutch' he really was.