MLB '11

[Alex]

You can see what it predicted back to 2002 (there's a year drop down that lets you change it).

2002 - Correctly predicted both winners (Barry Zito, Randy Johnson)
2003 - Missed both. Roy Halladay won but was predicted 2nd. Eric Gagne won but was predicted 2nd.
2004 - Correctly predicted AL winner (Johan Santana) but Roger Clemens won though predicted 2nd.
2005 - Correctly predicted NL winner (Chris Carpenter) but Bartolo Colon won though prediced 2nd.
2006 - Correctly predicted both winners (Johan Santana and Brandon Webb).
2007 - Correctly predicted both winners (CC Sabathia and Jake Peavy)
2008 - Correctly predicted both winners (Cliff Lee and Tim Lincecum)
2009 - Missed both. Zack Greinke won though predicted 2nd. Tim Lincecum won though predicted 4th.
2010 - Correctly predicted NL winner (Roy Halladay). Felix Hernandez won though predicted 6th.

So it has been a pretty good predictor though with two larger misses recently.