I'm not really into the sabermetrics but this seems interesting. From what I read it sounds more rational than WAR. WAR counts a leadoff homer in the first inning the same as a game winning homer. WPA takes a player in every clutch situation into account. Anyway, Josh Hamilton has the worst WPA in baseball, Trout is 5th worst and Kendrick is 10th worst. The Angels have 3 of the least clutch hitters in baseball. No other team has more than 1. School me on this stat Angelswin.
(This article was in the OC register but I can't link it because i'm not a paid subscriber, I read it in the newspaper.)