<p>AP Calculus BC approximates a year long college freshman calculus course for math, physics, and engineering majors.</p>
<p>AP Statistics approximates a semester long college statistics course for students who do not have any calculus knowledge. Many majors which require statistics (including economics and business) at some schools require a calculus-based statistics course and do not accept AP Statistics.</p>
<p>I.e. AP Calculus BC will be much more useful for college credit, and will look much more rigorous to a college admissions person looking at your transcript.</p>
<p>Note that AP Physics B is fairly useless for subject credit – majors that require physics typically require a calculus-based physics course. So, unless it would be your only physics course in high school, AP Physics B would not be a particularly valuable course to take. Of the three sciences, have you already had regular or honors high school courses in some or all of those subjects?</p>