If Barry Bonds can stay healthy I think the Giants are going to be the team to beat in the NL West. The NL West has gone from a weak division to maybe the best in the NL. Though I think Atlanta and the Mets are the best 2 teams in the NL.
I don't want to write off the Yankees though they've got some pitching issues. That's an obvious statement but when Moose gets back they need him to be a horse. Wang and Mussina are going to determine how good the Yankees can be this year. How ironic would it be if the Yanks had a down-year and A-Rod posted huge numbers, which he's going to anyways.
The AL Central is a beast, though right now I think out of the top 4 Detroit is the weakest. Zumaya looked awful in the 6-2 win against the Soxs. The White Sox and the Indians have the lineups in that division. As a ChiSox fan i'll say this, their pitching has been good and I love their bullpen. I think that as the season goes on their going to be able to shorten games with Aardmsa/MacDougal/Jenks.