Willy Tavares
Brings a spark to the top of Houston's batting order. Since they have very little offense, he's been even more important by getting on base and stealing. He might not even be making any waves had Lance Berkman not been hurt. His advantage at this point might be the # of at bats. You also can't deny his value to a weak offense.
Jeff Francoeur
While you may say he's not been there the whole season, what you can't argue is how important he has been for the braves stretch run. His advantage over Tavares is his five tool talent. He also has 12 homeruns in under 200 AB's. If he had more games under his belt, we'd be talking about how he could join Andruw Jones in the Gold Glove ceremonies.