Edited this up with some of my own ppl's beats.
List is accurate as fuck, Woulda prolly put Gordon Liu aka Master Killer and Leung Kar Yan a bit higher, but Leung wasn't a true martial artist, he didn't know one lick of Kung Fu, he was simply an actor who did it very well.
Gordon Liu is my all-time favorite so that's why I would place him higher, but there's too many ill people out. (Peep the clip @ 3:20 that backwards headbutt was sick.)
and no Jean Claude Van Damme didn't make the list.
P.S. Honorable Mention: Tony Jaa, but he needs more movies under his belt.