released their weekly power rankings report; take a look at who's on top:

2008 Power Rankings: May 9

12Athletics22-14Frank Thomas is hitting 100 points higher (.267) than he did with Toronto, but he has yet to hit a homer for the A's.
21Diamondbacks23-12It's almost scary how good Justin Upton can be. After hitting .340 in April, he's off to a .429 start in May.
39Red Sox23-14While Clay Buchholz's ERA (4.50) doesn't look pretty, he has allowed only three home runs in 38 innings pitched.
44Cardinals22-14Tag up on Rick Ankiel? No way. He probably could nail a base runner from the warning track -- on the fly.
510Dodgers19-15Andy LaRoche is stuck in Triple-A largely due to the play of Blake DeWitt (.500 BA with a 1.462 OPS in his past six games).
65Angels22-14Bad Vlad? Vladimir Guerrero has one RBI since April 25, which also was the last time he homered.
77Phillies20-16Kyle Kendrick isn't fooling anyone this season: He has given up eight or more hits in four of his seven starts.
815Braves18-15Tim Hudson has allowed just one extra-base hit -- a double -- in his past two starts (16 innings pitched).
93Cubs19-15Carlos Marmol leads all major league relievers in strikeouts, with 28 in 21 innings.
1013Mets17-15It's safe to say Ryan Church has been the Mets' most productive offensive player this season.
1116Marlins20-14Scott Olsen is 3-1 with a 1.29 ERA in his past five starts, and in three of those outings, he didn't allow a single run.
126Rays18-16Andy Sonnanstine has allowed the most homers (five) of anyone on the Rays' staff, but he hasn't given up one in his past four starts.
1318Astros18-17Can't get much hotter than Lance Berkman. The first baseman has 16 hits (three homers), 10 runs and eight RBIs in his past six games.
1421Twins17-16If Carlos Gomez is going to be a legitimate leadoff threat, he has to draw more than three walks in 126 plate appearances.
1522Blue Jays17-19Shaun Marcum (six) and Dustin McGowan (five) both have more quality starts than Roy Halladay (four).
168White Sox16-17The blowup doll. Ozzie Guillen's profanity-laced tirade. Gavin Floyd's near no-no. A bunch of losses. What a week it was.
1712Indians16-18DH Travis Hafner ranks 76th in the AL in slugging (.339). He has three hits and one RBI in 15 at-bats this month.
1820Yankees18-18Road warrior: Chien-Ming Wang has dazzled in three starts away from the Bronx this season (3-0 with a 1.64 ERA).
1917Orioles17-18Jeremy Guthrie has given up three or fewer earned runs in six of his eight starts, but he has just one win to show for it.
2027Pirates15-19The Pirates have three everyday players -- Xavier Nady, Ryan Doumit and Nate McLouth -- batting .324 or better.
2111Brewers16-18Eric Gagne has allowed four home runs and blown five saves. How much longer can he hang on as closer?
2226Nationals15-20Odalis Perez remains winless (0-3) in eight starts, despite having a very respectable 3.43 ERA.
2329Rangers16-20The Rangers have the AL's second-worst ERA (4.80), yet they gave up only one earned run in winning three straight over Seattle.
2414Tigers15-21The Tigers are 7-8 with Curtis Granderson and his .956 OPS in the lineup.
2525Royals15-19Jose Guillen, who signed with K.C. for three years and $36 million, is batting .185 with three homers and slugging a feeble .339.
2624Reds14-21Aaron Harang has to be lights-out to win, because the Reds are averaging only 2.75 runs per game in his eight starts.
2719Mariners14-22There's no O in Seattle: The Mariners have hit .195 and scored only 14 runs in their first eight games in May.
2828Rockies14-21It looks like RHP Greg Reynolds, the second overall pick in the 2006 draft, will make his major league debut Sunday.
2923Giants14-21So far, Aaron Rowand has been a good investment for the Giants (.336 BA-.390 OBP-.523 SLG).
3030Padres12-23Considered NL West contenders in the preseason, the Padres face the largest deficit (11 games) of any team in baseball.