I'm going with A-rod
As much as I hate him, I would go with A-Rod. Even though they are pretty much the same age and Jeter has more hits then him right now, I can see a-rod having a longer carrer. Plus, he has the power numbers. Just my thought.
i voted jeter, because hes always been a contact hitter and will always have a good solid contact swing. arod may lose that a bit as he ages, since he's primarily a power hitter, especially as he presses for more HRs in 5 years or so.
Seriously, who else are you gonna vote for?!