Best, Worst Celeb Do-Gooders

From Angelina Jolie (nominated as a UN Goodwill Ambassador) to Madonna (the Malawian adoption controversy), these stars topped a Reuters poll that asked: Who gave the best—and worst—name to “celebrity humanitarianism” in 2007?
The best:

1. Angelina Jolie
2. Bono
3. Desmond Tutu
4. Bill Gates
5. Bill Clinton

The worst:

1. Madonna
2. Paris Hilton
3. Oprah Winfrey
4. Bono (yes, again)
5. Bob Geldof