Bruce Lee all the way. He had more charisma and confidence ( for good reason, he could beat the living shit out of anyone!

) than any other actor. "Enter The Dragon" is simply the best martial arts movie ever made. Everything else is a pale imatation of it.
Jackie is great, but most of his movies suck really. "Shanghai Noon" and "Shanghai Knights" are his only good ones in my opinion. It's not his fault that Chris Tucker can make your ears bleed, or that his Hong Kong movies are just bad.
And Jet Li was great in "Lethal Weapon 4", but he just can't carry a movie by himself. His Moe haircut in "Kiss of the Dragon" didn't help matters. I do hear that his latest movie is great though.