Jeter is an awesome player Oggy, but his super clutchness is blown out of proportion. His playoff numbers and regular season numbers are pretty much identical. You actually skewed his numbers to make this point even better. He's just really really good and consistent. The fact that he has had lots and lots of opportunities in the playoffs lends to his "super clutch" image because there are so many great memories. He has practically a full season worth of at bats in the playoffs.
FYI the gold glove is often not given to the best fielder -I think he got half those gold gloves because he backed up a throw from the outfield against the A's in the playoffs well. (and because Jermy Giambi needs to learn how to slide) He is really good at making a routine play look more flashy by jumping though