Lang 2011 -- 5 -- We would take practice essays nearly every day (sometimes we had to do three in a 2 hour block period.) and multiple multiple choice practices. No study outside of class but our teacher prepared us very well.
Bio 2011 -- 4 -- I wasn't the greatest student but I studied this one for a solid amount of time 2 weeks in advance. More difficult than chemistry in my opinion.
Lit 2012 -- 4 -- Teacher prepared us well enough, I had learned enough from the previous year on essay writing to do okay without studying. Just need to remember to know a good book you can reference/write an essay on.
Chem 2012 -- 5 -- I never went to class, my teacher was useless, but I studied pretty hard 3 weeks in advance hoping I could get a grade bump and not fail the course if I did well. Was lucky enough to get a test that seemed easier than previous years, except for a brutal titration problem.
Calc AB 2012 -- 4 -- This was the only AP class I was really interested in during my senior year. Stayed on top of it and studied throughout the year instead of one short burst at the end.
Good luck man.