Okay, so my examples were bad examples
PSA: Don't actually look at people's fictional crushes. Those are weird and often scary (I'm looking at you, Hannibal fangirls...). Look at who they go for in real life. A good rule of thumb is that people tend to go for someone like themself. So the crazy, fun-loving girl will go for the party lion, and the nerdy, bookish girl will go for the guy who'll sit and read with her for hours*. Stuff like that. But again, it depends a lot, and you only get your answer by actually looking around.
* Incidentally, how does one find such a person? I'm asking for, uh... science.