BEST MIAMI HERALD WRITER Glenn Garvin Love him or hate him, Garvin has become a formidable presence at the Miami Herald, transforming the once staid job of TV critic into a prominent platform for a crusading conservative warrior. Simple sitcom reviews become launching pads for full-blown media criticism; even the slimmest of news pegs grows into a strike on cultural elitism. True, Garvin often still seems to be roaming the Nicaraguan countryside with the contras -- a bullet-dodging foreign correspondent role he played in the Eighties for the Washington Times -- with left-leaning Hollywood starlets and liberal press bias now standing in for the Sandinistas and Soviet expansionism. But that enduring Manichaean fervor is also what makes Garvin's writing so vital. Every piece is brimming with conviction, a sense that ideas matter, and that his words on those ideas demand to be read and pondered, whether he's mocking Dan Rather or shaking his head in disbelief over the mania surrounding Art Basel. In a newspaper that's far too full of stenography masquerading as journalism, with stories that often appear to be doing little more than filling space, Garvin is a welcome relief.