National League
East Division:
Philadelphia Phillies- The starting pitching rotation is completely dynamic. Halladay, Hamels, Oswalt, and Lee. With that starting rotation, it's hard to say they can't finish first in their division.
Central Division:
Milwaukee Brewers- This team has power, with Prince Fielder, Ryan Braun, and Casey McGehee. Also, additions to the field like Nyjer Morgan and Yuniesky Betancourt will help the team.
West Division:
San Fransisco Giants- Last season, they won the world series. This year, they have a great pitching staff and Brian Wilson as their closer.
American League
East Division:
Boston Red Sox- With Carl Crawford, Adrian Gonzalez, Bobby Jenks, Dustin Pedroia, Kevil Youkilis, Jacoby Ellsbury and Josh Becket, you really can't argue.
Central Division:
Chicago White Sox- With new players Adam Dunn and Jesse Crain, plus Konerko, Pierzynski, and Alexei Ramirez, Rios, they will be good.
West Division:
Texas Rangers- With pitchers Brandon Webb, Scott Feldman, and Neftali Feliz, and Adrian Beltre, Josh Hamilton, Nelson Cruz, and Ian Kinsler, they are looking pretty good.
World Series:
Piladelphia Phillies
Boston Red Sox
Winner- Philadelphia Phillies