People who say he is simply "wushu" don't know much. While he was a wushuu performer, that does not mean he can't fight. For god sakes hes lived and breathed chinese kung fu since he was a baby, look at the mans speed and power, of course he can defend himself. Do you know just how difficult and dangerous hong kong action movies are? If you get hit, you get hit, it takes alot to get that kind of choreography perfect, he definitely has the skills to do what he wants.
It is NOT a style. He simply uses the agility, strength, speed, and wits gained from gong fu to display very fundamentally in movies. You don't need complex techniques after you've already gotten good at them. He is also a genuine martial artist, he is kind, honorable, and even began taking up buddhism, which is what made Shaolin monks so legenderay in terms of their skill.
Truth comes from the absolute stillness of the mind...