In June, at the age of 17, Lohan became the youngest person to host an MTV Movie Award show, won the MTV movie award for breakthrough female performance and has just released her first single I Decide with an album to follow.
Alexa Vega, 15, has graduated from the Spy Kids movie series to star as a mixed-up middle schooler in the girl comedy Sleepover opening this month.
Raven, 18, is wowing Disney Channel fans with her own school-based TV series That's So Raven. Comparative old ladies Mandy Moore, 20, and Anne Hathaway, 21, star as troubled teens this year in movies Chasing Liberty and Saved and Ella Enchanted and the forthcoming Princess Diaries 2 respectively.
Duff, who had a highly publicized spat with Lohan after both girls briefly dated singer Aaron Carter, finds the competition more awesome than awful.
"I think there is plenty of room for everybody. Everybody is so talented and I feel like I'm in great company," she said.
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