I think the beauty of a round-robin is that we ARE writing differently. so they don't have to match each other in tone as long as it's the same narrative. someone can write an emotional discussion of Regina's mommy issues and the next chapter can be a comedy about Henry playing matchmaker as long as it all connects. I don't have a preference for drama or angst or anything else as long as it isn't a genre that forces everyone to conform to a mood (with a super serious subject matter, like some kind of trauma).