This would be a good fight. I go for Young's counterpunching to outscore Spinks' aggressive charges and workrate.
Young has the perfect style and physicality ( Meaning not a dynamic puncher or with dynamic speed) for a busy fighter like "Neon" Leon to shine against. I like Spinks to beat Young because he'd have the right amount of aggression and endurance to keep Young thinking defense. The best Spinks beat the best Young by decision more time than not.
REALLY TOUGH ONE, styles make fights, Leon was fast and hit harder, albeit Young beat better fighter's than Leon. Depends on which one show's up : the Spinks one that beat Ali, Or Young who beat Big George. Ossie Ocasio albeit a lil underrated was not as good as Spinks or Jody Ballard was not better than Leon for that matter. either