Yes, dunking has become an art form. Just as Rembrandt and Pablo Picasso became Jackson Pollock and Andy Warhol, who have now become Chris Stain, Julius Erving became Michael Jordan and Dominique Wilkins, who have now become Blake Griffin.

Every time we think we've seen the pinnacle of dunking performance, someone comes along to drop our jaws again.

Dunking has evolved to such an astonishing level, it is more difficult than ever to judge the historical athletes against the present. 

But on the verge of the NBA's premier dunking event, it is important to look through the window of history. We'll not only see where we've been, but be able to tell, on a level playing field, who is the greatest dunker of all time.