(Potentially) bad news
Newsday, not the most reliable source, is reporting that Roger Clemens has decided to return to the Astros. As much as I loathe the Evil Empire, I'd rather the Rocket head north (actually, Boston or Texas would be my preferences).
Why not Houston? Blame the Mets. With New York's other team a definite playoff contender, we have to consider the rest of the National League's elite as rivals. Right now, because of their bullpen instability, you'd have to rate the Bravos behind the Mets in the East.
Besides the Metropolitans, I'd place the 'Cards -- assuming Cris Carpenter's injury is as minor as it appears -- and Dodgers as the teams to beat in their respective divisions. Next best: the Braves and Astros (Arizona is off to a nice start, but their starting pitching beyond Brandon Webb is atrocious). With Clemens, Houston gets the edge. Without him, advantage Atlanta.