Simple Question, Difficult Answer: Best Film of the 1920s

Okay, here it is.  The big enchilada.  Best film of the decade.  It's a choice I'm struggling with myself, so I'm dying to see what you all come up with.

Poll closes Saturday, September 15.  You can vote in the sidebar.

Here's the film list:

• Battleship Potemkin
• Destiny
• Dr. Mabuse: The Gambler
• Flesh and the Devil
• The General
• The Gold Rush
• Greed
• The Iron Horse
• The Jazz Singer
• The Kid
• The Last Laugh
• Metropolis
• Nosferatu
• The Phantom of the Opera
• Safety Last
• The Seven Chances
• Sherlock, Jr.
• Sunrise
• Tol'able David
• The Unknown
• Other- Write your answer in the comments!