Chuck Norris is like a ninja - skilled, sophisticated and deadly.
Vin Diesel is like a pirate - un-refined, brutal and ultimately quite popular, being one of the masses.
Over-all, Chuck beats Vin, and Ninjas beat pirates, since pirates are just your regular school bullies, 400 years ago, with funny hair-dos and wicked clothes. Oh, and ships. While Ninjas are supreme assassins and Chuck Norris is a PROFESSIONAL ass-kicker. Which beats 'OMG I R TEH ANGRY RAWR' any time.
Yus.