Iron Man vs. Bruce Lee

No disrespect to the Dragon himself Bruce Lee, but I'm fairly certain a real fight between Bruce Lee and Iron Man wouldn't end in hobbits. Just a thought. Regardless, after the jump is a fan made video featuring the classic kung fu stylings of Bruce Lee pitted against the wunderkind know-how of Tony Stark. Although this fight is awesome, I would really love to see Bruce Wayne/Batman battle Tony Stark/Iron Man in a battle of the ingenious multibillionaires. Honestly, why hasn't this been done yet in a massive Marvel/DC crossover?