I fully agree! World building can be fun, but only when the two who are creating work well together. As far as fandoms go, I typically like to stick with Canons. I like exploring the characters already present and expanding their story, and sometimes personality, into something bigger then the story they came from. A few OCs among cannon works as well, if the plot needs it ^.^; Not sure if that is the answer you are seeking but it is honest!