Is Robert Downey Jr. Really The Entertainer Of The Year?

Entertainment Weekly has named Iron Man's Robert Downey Jr. as their choice for the entertainer of 2008 » 11/16/08 2:30pm 11/16/08 2:30pm - and while we may have loved Jon Favreau's metal Marvel hero movie, we're unconvinced that Downey Jr.'s necessarily the right man for the title. What about Heath Ledger, the unintentionally-entertaining Michael…