Disney would be the least-IMHO.
I love the use of the term "naughty room" Fern. A term I'd used for many years, but became popular after some people on another board started using it after my review of the VoS a while back. I've seen it a lot in past year. Thanks--I always smile when I see it.
I wouldn't know about NCL as it has been years since I've sailed with them, but RCCL over CCL for sure.