If unsure whether to take advanced placement, try the old final exams of the courses that can be skipped. That can allow for a more informed decision.
But also be careful if AP scores are used for secondary admission to major. For example, at NCSU, they are converted to grades for secondary admission. If an AP score converts to an A, the incentive is to leave it as is (not repeating). But if it converts to a lower grade, the incentive is to repeat it.