Although most of New Times' Best Of designations are necessarily subjective, this one is empirically true: CJ Jackson is indeed the best boxer in Miami. Last year the middleweight, who trains at Biscayne Boxing and Showtime Boxing Gym, won the National Collegiate Boxing Championship, which means he's one of the best in the nation. "What makes him effective is his IQ," trainer Mickey Demos says. "I can show him something once and he gets exactly why and can do it." And yes, Jackson is just as much brawn as brains. True, having 4 percent body fat probably has something to do with his success, but there's no doubt Jackson has a bit more going for him than his fleetness. Dedication combined with a dilettante's attitude seems to be a common thread in his life. He served five years in the Navy, attended acting school in L.A., and is the first person in his family to attend college. The biology major thinks the subject is a bitch but says he puts as much effort into becoming a doctor as he does his boxing. And it sounds like he'll have no problem with his anatomy classes. "Boxing is an extremely technical sport with a thousand exceptions to every rule," Demos says. "But with CJ, it's like giving someone an NFL playbook and he can memorize 60 in a day."