Good point. And it is hard to define, that's probably why I bailed! So now I will give it a go... at the risk of offending, and this is just my perspective.... but for me the biggest area is with the kids. And I think my kids picked up on this on their own when they tried Carnival especially. I have never said anything negative to them about dcl. The kids on Carnival are a lot nicer. The kids on DCL (just my opinion) tend to be more self-centered. There was an interaction with a server in the dining room where one of our kids was whining about something and the server was going to run and fix it and I stopped her. I said something like, no, please don't give him what he wants (I don't remember what it was but it was something ridiculous). And the server said you are the first parent on dcl I have encountered to say that. She said dcl parents treat their kids like little princes and princesses. Well, that is not us. We are old school. Lol.
I think other things are clicky on dcl, again just my perspective, the fish extender thing for example, and all the FB stuff before the cruise. It sometimes becomes really obvious to me who is inthe FB group and who isn't. They stick together and get their kids to play together. Well, we are not FB people either. I do not get that on other lines at all. These are not things that make or break my cruise. Not at all. For me it is price. But it does feel very high school over there on dcl and much more grown up out beyond dcl.