I've personally worked and cruised on a cruise ship and have flown to countries for vacation and I know what made me happy at the end of my travel. Cruising has a lot of perks and once your on a ship you don't even feel like your on a ship and the crew are the best part of your cruising experience as they treat you with all the respect you can expect and the service that you receive is tremendous.
Different cruise industries and Cruise lines.
There are a lot of cruises out there and here are some popular ones... Royal Caribbean, Norwegian, Princess, Carnival, Holland America, Celebrity and many more.
The biggest ships.
Royal Caribbean has the biggest ships in the world and to compete with them Carnival are coming upon with their 2 new large vessels but only when they are up and running you will be able to tell the difference.