Favorite Leonardo DiCaprio movies?

It used to Titanic, until I saw Catch Me If You Can. Now Catch Me If You Can proved to me he was a GREAT actor. I always loved him as Arnie in What's Eating Gilbert G and he was good in Romeo and Juliet too! but Catch Me If You Can is the all-time best. I want to see the Departed and the Aviator REALLY bad, but I'm 14 and not allowed. :(