He is the greatest actor Hollywood and the world has ever seen (according to me). He's a maestro with his methodology, and has always produced characters that are so intense and heart touching. Ask me to define acting-I'd reply Al Pacino.
One of my favorites. Can broadcast huge amounts of emotion through his eyes alone, and uses his smooth, compelling voice to great effect. Cons: Like Brando, has been typecast by some earlier roles, legendary though they are.