Libby has his work cut out for him here: first, in trying to convince us that Stabler, despite years of waiting behind Lamonica and Blanda and the Raider's Super Bowl frustrations, is the best quarterback in the game; and then in trying to characterize his high-living, unpredictable hero as a ""Huckleberry Finn"" type. The former proposition is the easier to take and Stabler's fans will be happy to see this first, book-length bio. But Bear Bryant's understated complement, ""He wasn't a bad boy, really. . .and as a player, he was the best I've had,"" makes Libby's hard-sell profile sound all the more strained.