In a recent Q&A on MSNBC they ask, "Do young people still have role models?"
In the reply they mention:
In addition, there are a few celebs who are not on the path to self-destruction. Some of the kid's shows have teens who are portrayed as funny and smart with heart. For instance, Raven of "That's so Raven," Drake and Josh, the Jonas Brothers, iCarly (funny they said iCarly and not Miranda Cosgrove).