The members of the World Ocean & Cruise Liner Society recently voted on their top 10 cruise ships in terms of entertainment offerings. These are industry insiders, not tourists, who do the voting. Their picks:<br /><ol><li>Carnival Liberty (Carnival Cruise Line)</li><li>Queen Mary 2 (Cunard Line)</li><li>Crystal Serentiy (Crystal Cruises)</li><li> Summit (Celebrity Cruises)</li><li>Crystal Symphony (Crystal Cruises)</li><li>Constellation (Celebrity Cruises)</li><li>Crystal Harmony (Crystal Cruises)</li><li>Rotterdam (Holland American Line)</li><li>Infinity (Celebrity Cruises)</li><li>Sapphire Princess (Princess Cruises)</li></ol>