He is a form champion, not a fight champion. Although he is regarded as being one of the greatest ever when it comes to exhibition.
Bruce Lee on the other hand was all about fighting, not stances. His stances were mocked.
And Chan, before he was a comic kung fu guy, did stunts for Bruce Lee movies. I think he was even a stand in for Bruce Lee. Chan only started the comic kung fu when one of his early movies was the first successful of the comic kung fu genre. Jackie Chan is the real shit, he's the Mick Foley of martial arts movies.
Bruce was the man. Dont get it confused though. He wasnt just a movie actor who knew some moves..this guy would be challenged on the street and he would always take them on. Always. The man was a Bad Ass.