Jet Li is a better action star, but I like Jackie Chan's comedy and that he does nearly all of his own stunts. At least both of them know how to fight.
WOW that's a hard choice. Jackie Chan because of one of my favourite movies ever which can be seen in it's entirety in the one Youtube video below FANTASY MISSION FORCE!!
It's so bad it is good xD And supposedly Jackie Chan only did the movie as a favour to Jimmy Wang Yu who protected him from the Triads when he was just getting started in acting :P It's an action comedy :P
Jackie Chan started from Bruce Lee's movies where he had small roles and later Jackie started making his own movies - comedies. Lian Li Jie ("Jet" Li) was invited to movie-industry to become "second Bruce Lee".