Some of my favorite subjects for creative writing are pitches for new ideas as far as cartoon shows, or pitches for cartoon movies, or trading cards that can be invented to make a game more interesting. I also like the idea of cartoon characters or video game characters doing something unexpected or new, and I like the idea of making new cartoons just like the old ones to show possibilities that the creators of those shows never went for (for example, in the animated series Aladdin, they never had an episode where he had to face ALL his recurring enemies. At the most there was occasionally a teamup with two enemies against him.).
I also like science fiction type stories, as long as they're not too complicated. It isn't that I'm not smart enough to follow along or anything, but it just isn't fun if I have to put that much effort into figuring out what's going on, especially since it isn't really real anyway. I like fantasy even better, and I enjoy a story involving the occult, as long as it has a happy ending. One theme or subject I love exploring is the idea of a character becoming either younger or older than their natural age. Getting older is perfectly natural, so a character getting younger is much more intriguing. One of my favorite story types is superhero/super-villain stories, since they combine fantasy with fighting and usually a battle for truth and justice.
I don't like to see or read about someone dying, though, and if I read about a hero, I want to know that they are virtuous and just, not simply buffed and think they can beat other people to a pulp. Cartoons are definitely my field of interest, and I like them to be creative, kosher, and (If taken from another show or movie, or short) accurate to their character creation. I'm not sure if I've answered your question exactly, but I tried.