READERS' PICK: Can a bar be all things to all barflies? If you're talking about the Buffet Bar, well, yes. The hardcore drinkers and up-all-night partiers appreciate the 6 a.m. opening time (although stumbling out at 11 a.m. or so into the blinding Tucson sun is instant penance). The forlorn appreciate proprietor Peggy's comforting presence (not to mention her excellent Bloody Marys). The competitive love the pool tables and shuffle puck deck, and the peckish really, really love the always-available Jumbo crock dogs. It's the sort of place where "One Bourbon, One Scotch, One Beer" is not merely a drink order or a song, it's a frigging anthem. Drinks--for all my friends! If it were a smash hit: "The Piano Has Been Drinking (Not Me)," Tom Waits.