Not that they'll listen to anyone, but they have a survey up where you can rank the judges and things like the save.It is really long, and who knows if they'd pay attention.
http://www.americanidol.com/news/view/pid/3087/?ref=socialmedia_2010_05_04_IdolSurvey2010
If there is anything the nonconformist hates worse than a conformist, it's another nonconformist who doesn't conform to the prevailing standard of nonconformity. - Bill Vaughan