Honestly, they look at your high school courses more than anything. Taking a criminal justice class for college credit won't hurt your application, but it won't necessarily help it a whole lot either. For example, my roommate who went to college for a year before coming to the academy got credit for Calc 1 an 2 which she took in high school but not for calc 3 that she took in college. They look at your core classes the most and how well you are doing in them . I would say if you can take more AP classes if you can, but if you cannot do well in them, its always better to take a lower level class and get a great grade in that class. Gov, Politics, and languages courses are all classes that you will take at the academy so taking them now may help for taking them at the Academy.
Also remember that you are first and foremost going to a four year institution that focuses on academic as much as the military aspect. Although you want to be a pilot, you are going to have to get through all the basic classes like gov, politics, language courses first. Taking computer courses is very important as well. Now that the world is turning more toward technology, if you are good at computers or have at least take computer classes, that puts you over a lot of people that have never taken courses like that. You will be taking courses like that as well at the academy.
Hope this helped a little. Good Luck. And if you don't get in the first time, apply again. Some people give up after the first try but if you stay with it, then you should get it. I know people that applied at least 3 times before getting in, so it is possible.