There are a few people on these boards that have tried other lines and feel
DCL is a better fit. I don't think she was being nasty....just pointing out the obvious. The majority though have not tried other cruiselines.
As for myself I like Carnival and Disney. My teens like the clubs on DCL better. They liked the food and the Carnival ships better. I think you can have a great time on Carnival, but I would stick with the new bigger ships. The Vista and Carnival Horizon look amazing.
I like the idea of the Imax theatre. There is a charge, but you actually get to see first run movies that aren't Disney movies for kids. I haven't tried either yet only because I'm not interested in the Caribbean. When I'm ready to go back to the Caribbean for the Umpteenth time one of those ships will be my first choice. I've heard there next new ship the Panorama will be the west coast.