You may be tempted to vote for Mark Teixeira. Mark's been a better hitter than Derek, but not by as much as you probably think. Don't be swayed by his RBI and HR totals. They are not spectacular totals for a first baseman. Furthermore, who do you think he's been driving in? Derek Jeter, that's who. First baseman who can do what Mark does are much more common than shortstops who can do what Derek's done this year.
Look, things can change in the next month, but I implore you to look beyond a few somewhat gaudy numbers and appreciate the man who really makes the Yanks go. You assure us all the time that the game isn't about numbers. That it's about people. Prove it. Vote for the guy whose value is tied up in more subtle things than RBIs and HRs. Vote for Derek Jeter.*
* Personally, I'd vote for Joe Mauer and then Ben Zobrist before Derek, but if you think being on a playoff team is important, Derek's your man.
**UPDATE** Never mind. Derek just sacrifice bunted with a two run lead in the second inning, no one out, runners on first and second, and Jose Contreras struggling. This is a terrible, terrible play, for which Michael Kay is rightly excoriating him, noting that Derek is a great hitter having an MVP type year. Al Leiter is trying to defend him, but it's a real reach. It doesn't matter that Derek leads off now (not that lead off hitters sacrifice bunt a lot anyways, Al). It doesn't matter that it's small ball. You can't give up outs in that situation. You just can't.