Which team does have the best rotation in the Majors?  Now, with the addition of Harden, I think it is the Cubs.  Here's my analysisof the top rotations in the Bigs:

Chicago Cubs: Zambrano, Dempster, Harden, Lilly, Marquis.  The Cubs rotation last year was solid, and now in '08, the '07 two-slot starter (Lilly), has slipped into the 4 spot.  Between the big three (Zambrano, Dempster, and Harden), the highest ERA is Dempster's (3.25), proving to be the MLB's best trio.

Toronto Blue Jays: Halladay, Burnett, Marcum, Litsch, McGowan.  This rotation has been phenominal.  Halladay and Marcum are currently maintaining ERA's below 3.  However, the other three starters are fighting to get their ERA's below 4.  Despite Burnett's 10 Wins, he still has an ERA of 4.84.  Still, the dominance of Halladay and Marcum keep the Blue Jays in the Race for top Rotation in the Bigs.

Boston Red Sox: Jon Lester, Tim Wakefield, Josh Beckett, Daisuke Matsuzaka, Justin Masterson.  All five in the current Sox rotation maintain ERA's below 4.  Outside of Clay Buchholz (2-5 5.88), who has bounced in and out of the rotation, this rotation has been absolutely dominant.

Tampa Bay Rays: James Shields, Andy Sonnanstine, Matt Garza, Scott Kazmir, Edwin Jackson.  4 of 5 starters have ERA's below 4.  Tampa Bay pitching has kept the Rays in just about every game they compete in.  Although they are not all fully developed as players, look for this rotation to dominate for years to come.

Chicago White Sox: John Danks, Mark Buehrle, Javier Vazquez, Gavin Floyd, Jose Contreras.  Buehrle and Floyd both hover around 3.6 as far as ERA goes, while John Danks hovers in the 2.7 range.  Contreras and Vazquez have higher ERA's, 4.6 and 4.61 respectively, but they continue to keep their team in the game (both with 7 Wins).  The White Sox will continue to Win as long as thier pitching holds up.

Atlanta Braves: Hudson, Jurrjens, Campillo, Reyes, Glavine.  The loss of Smoltz has hurt the rotation, and injuries to Glavine have hurt as well.  However, the Braves pitching, led by Jurrjens, Campillo, and Hudson, continues to be a top rotation in the MLB.  All three of those pitchers have ERA's right around 3.

LA Dodgers: Lowe, Billingsley, Kuroda, Penny, Kershaw.  All pitchers, outside of Penny, have been dominant, and Penny is sure to come soon.  Young Clayton Kershaw hasn't quite dominated either, but he is soon to prosper as well.

LA Angels: Santana, Saunders, Lackey, Weaver, Garland.  Wow, this rotation is good.  If there's one team that has a better rotation than the Cubs, its the Angels.  Three of the listed starters are hovering around an ERA of 3 (Lackey, Saunders, Santana), while the other two are right around 4 (Garland, Weaver).

Those listed above are the top rotations in the Bigs, and I am led to conclude that with the addition of Harden, the Cubs are the best of the best.  The Athletics had one of the best rotations, but with the loss of Harden and Blanton, they were severly hurt.  Who do you think has the best rotation?