These are three facts from the Trivia Section of Robert DeNiro's Biography:

His performance as Jake La Motta in Raging Bull (1980) is ranked #10 on Premiere Magazine's 100 Greatest Performances of All Time (2006).

His performance as Travis Bickle in Taxi Driver (1976) is ranked #42 on Premiere Magazine's 100 Greatest Performances of All Time (2006).

His performance as Travis Bickle in Taxi Driver (1976) is ranked #22 on Premiere Magazine's 100 Greatest Movie Characters of All Time.