Mr. Big vs. Tennessee Buck. Gotta love it. Chris Noth's hard-luck cop Mike Logan — previously exiled to Staten Island for slugging a politician — took on David Keith's rogue detective Mark Virgini, a man hardly as innocent as his name implied. At first, Mike wasn't eager to bring down a fellow cop. As Barek said, "You know what it's like being on the wrong end of the microscope." Mike's volatile, sure. Let's face it, that's what makes him so much fun. Moreover, there are few things more satisfying in a cop show than the sight of Logan sticking it to a creep — and heaven knows Virgini qualified. When the scum wasn't moonlighting as a hit man (he shot a bookie multiple times in a sensitive male area) he was offering his daughter Rread more