What the stros have lacked thus far was a friggen hot streak! All other teams in the division has had one (the real reason the reds are temporaily first) but the stros havent won that many continuously. I know they have the talent and the players to potentially go far.
The Cubbies rotation at it's best and healthiest is extremely intimidating, however I think they lack the combination of hot batting and great pitching to end up on top.
The Cards are a wild card. They're playing the underdog which suits them fine. I wouldn't count them out quite yet, espiecally if Marquis, Carpender, and Suppan can continuosly pitch well.
The Bucs, Reds, and Brewers all have respectable teams but have holes too big to compete with the other three teams.
It should be a closeand interesting race.
"I'm going to meet the greatest umpire of all, and he knows I'm innocent."
-Shoeless Joe Jackson