Korn - haven't heard (Clown and Blind were so-so)
Life Is Peachy - haven't heard (but Twist was awesome)
Follow The Leader - I liked it until the second half of the CD. Reclaim My Place, Justin, Cameltosis, My Gift To You--they just didn't cut it for me.
Issues - terrible, the only good song was Falling Away From Me
Untouchables - haven't heard (Here To Stay was good)
Take A Look In The Mirror - pretty much everything was good, although Counting On Me, One, and When Will This End seemed kind of dull to me.
Greatest Hits Vol 1 - I liked everything except the stuff from Issues (with the exception of Falling Away From Me). Word Up! was decent, but may have been better with the original artist. (Haven't heard the original so I don't know.)

There's my take. The CDs I haven't heard but like stuff from--those songs were on the Greatest Hits, so that's how I know without having heard the rest of the album.