The Hank Aaron award recognizes offensive contribution and is decided by fan vote. See here. Kevin batted .312 / .390 / .569 with 29 homers. He was 6th in league BA and OBP, 3rd in SLG, and 4th in OPS. He was 3rd on the team in Value over Replacement Player with 55.8, behind only Pedroia (62.3) and Jon Lester (58.2), and 2nd in Equivalent Average (.313), behind only J. D. Drew (.314). In the NL, Cubs' third baseman Aramis Ramirez won the award.
Congrats Youk! You deserve it. And I would be remiss in my duties if I didn't add this: How do you like that, Mel?