Celebrity Cruise Line has 15 ships in the fleet and a subsidiary of Royal Caribbean. Celebrity tends to be a slightly more upscale experience, which makes it more appealing to adults than to families with kids in need of entertaining.

Princess Cruises has been ranked based on an expert evaluation of the line's level of luxury, as well as an assessment of user reviews and health ratings.  Princess fleet contains 17 ships in three distinct classes. Princess offers world cruises that span several continents.

Disney Cruise Line has 5 ships in the fleet. On a Disney cruise, there is something for everyone: relaxing "me" time for the adults, imaginative fun for the kids and exciting family time for all. Every voyage includes the attention to detail and world-class hospitality that only Disney can provide.