Pat Metheny has a lot to say about Kenny G, and it's pretty fun reading.

http://www.jazzoasis.com/methenyonkennyg.htm

"There must be hundreds, if not thousands of sax players around the world who are simply better improvising musicians than Kenny G on his chosen instruments. It would really surprise me if even he disagreed with that statement."

Wow, it never occured to me to critique Kenny G with the same rubric that jazz musicians and critics use. Good read.