WIDE WORLD OF SPORTS: Cardinals guard Leonard (Big) Davis, the NFL?s heaviest player (384 pounds; 6'6"), eats two bowls of Lucky Charms for breakfast.... Oakland?s 6'8", 345-pound tackle Langston Walker (right) plays on the AFC?s weightiest offensive line (average: 321 pounds). ?I eat a lot and probably very badly,? he says of a lifestyle that includes ?ice cream ... chocolate, peanut butter or cookies and cream? and trips to Carl?s Jr.... Tennessee?s 307-pound rookie DT Randy Starks says, ?I?m a snacker. My favorite snack is blueberry Pop-Tarts.?