This is a very interesting read. I can't post the whole thing, but it's free so just click on the link to read the whole interview.
http://www.baseballprospectus.com/ar...rticleid=10053
I thought this was interesting:
DL: Do you pay more attention to your batting average or your on-base percentage?
CH: I would say on base percentage for sure. It’s more important. Getting on base is the whole point of the game, because that’s how you end up scoring runs, so I’d like to increase my walk numbers a little bit. But while I’d like to walk more than I do, at the same time I like to stay aggressive. I’ll still swing early in the count, because usually that’s when you get a good fastball to hit. I think there’s a fine line between walking a lot and not being aggressive enough, so I like to balance those two out.