My bad, I don't know why but I was thinking you meant 2nd semester senior year.

One of the most important things in colleges look at is your course selection and workload, so if you take a lot of APs they will be happy. I'm pretty sure BC Calc is the holy grail in terms of course selection.

If you think you will be doing any kind of economics, engineering, or science in college, go ahead and take Calc in high school. It will help you a lot (coming from a person who decided not to take any Calc in high school and then did the full sequence in college ). I know you said you wanted to take AB, but I remember my precalc teacher telling us that in 1 semester of AB you go ahead and learn a lot of the stuff you would in the second semester of BC (just in a less rigorous way). So I would consider BC if you think you are up to it. Remember that your grades in college are a lot more important than those in highschool and having the background may be helpful to get you good grades later on.

Geopolitics sounds good and might have application for Poli-sci. If you're more interested in any other history subject though, go for it.

For science, Organic Chem and Physical Chem would be the most helpful if you're looking towards the future (again science, engineering) but otherwise Neurobiology is pretty interesting and not as bad.