Disney is an extremely family friendly cruise line. Activity wise their kids program is unmatched - But they're also an expensive cruise line. Their sailings are very popular and as a result they sell out early.
Royal Caribbean is a great alternative, especially on their Radiance, Voyager, and Freedom class ships. Royal Caribbean's program is known as Adventure Ocean. Just as attractive is that Royal Caribbean has many more departure points and itineraries to choose from.
Princess and Carnival also have strong kids programs, particularly on their larger ships and are good options as well. They also have a lot of ships and itineraries available .
The key thing you need to remember is that with the exception of Disney, your children must be at least 3 years of age and potty trained in order to be enrolled in the programs onboard.
With the wide selection of choices available to you, it's not a bad idea to call a travel agent that specializes in cruises. They can work with you to find a family friendly cruise line and itinerary that fits you and your family. In addition a good agent can match the same deals offered by the online sites, and they won't charge you any service fees. Cruise Planners (www.mycruiseplanner.net) 888-286-9827 is a good option.
