Calm, reasoned, and well-modulated tones are not the order of business in discussing Chicago sports, and when it comes to talking Chicago sports, Mike North is in a class by himself. He led the sports-talk-radio industry out of its formative stages and became the city"s most recognized voice. With his in-your-face style, North has all the answers and doesn"t shortchange the reader when it comes to opinions. Why do the Bears carry the city? What"s the basic difference between Sox and Cubs fans? Will the Bulls ever return to glory? Can the Blackhawks recapture their stature as one of the top teams in the NHL?