NL East - Mets - Yes, they were just swept by the Phils. Yes, their middle relief is non-existent. However, with a favorable schedule down the stretch (six of their last nine opponents are out of playoff contention, likely going into the annual September-swoon for non-contenders) and arguably the finest lineup in the NL, the edge goes to the Metropolitans over the Braves and Phils. Add onto this the fact that they have a solid, albeit not spectacular, veteran rotation in which the fifth starter holds a 4.22 ERA (not counting a possible Pedro return), and Wagner holding down the ninth and the Mets should have just enough to take the division. As for the other contenders, the Phils just don't have the starting pitching to consistently take on the likes of Atlanta, Florida, New York, and Colorado down the stretch-- Howard, Utley, and Rollins are man-beasts, but they can only do so much. As for the Braves, they have a lineup rivaling the Mets and a couple ace veterans in Hudson and Smoltzy, but there's little to no quality pitching depth under them in the rotation and absolutely no back-end relief in the 'pen. So yeah, Mets win.
NL Central - Cubs - Yes, them loveable Cubbies with Sweet Lou, will finally find themselves back in the playoffs. The starting pitching has been inconsistent at times, but (sorry Brewers fans), there's probably more talent in Zamb
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NL West - Padres - Pitching, pitching, pitching, pitching, and what else? Pitching. Despite Chris Young's recent struggles, the Pads still sport two top NL Cy-Young candidates-- and their third starter? Greg Maddux. Mix in arguably the best bullpen in baseball (and a manager who knows how to use them), and a resurgent Milton Bradley, and you have not only a playoff team but a dark-horse World Series Champ to boot. As for the currently-leading D-backs, I will say this much. Their youth might lead to a late season falter, but this will be a competitive team for years to come. The Pads have the edge to win this year's fight(with their - yes, you guessed it - pitching), but there is no way that the Diamondbacks stay down for long.
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There you have it, albeit in a very long-winded fashion. The moral of this story-- the NL is where it's at this year, and if you can spare time from football, do yourself a favor and tune into some of these races, and watch me be very very wrong!