And he won't be hitting in Miller Park anymore. LINK
Last 3 years Miller Park for home runs
2011 - 1.062
2010 - 1.233
2009 - 1.069
Last 3 years Comerica Park for home runs
2011 - .987
2010 - .922
2009 - .974
Anything above 1 is a hitter friendly park. Below 1 is a pitcher friendly park.
I didn't read the whole thread so if somebody already posted this , sorry.