1. Sylvester Stallone
He is the undisputed king of the action genre and the greatest action star of all time. From "Rocky" and "Rambo" to "Judge Dredd" and "Cliffhanger" to "Demolition Man" and "The Expendables," nobody oozes the machismo (or takes a beating) like Sly. After 25 years of putting a choke hold on the box office, we salute Stallone by naming him the Heavyweight Champion of action movies. Yo, Adrian. He did it!!! And if he can change. And you can change. Everybody can change! Merry Christmas, kid! —XFINITY Entertainment Staff (Photo by Frazer Harrison/Getty Images)
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