<p>Calculus BC and Physics C would be the most worthwhile ones for an engineering major. Take Spanish if you want to learn Spanish and/or it is needed to fulfill foreign language requirements.</p>
<p>Calculus AB is generally credited as only a semester of freshman calculus, while a 5 on Calculus BC may be credited as up to a year of freshman calculus, except at super elite science and engineering schools whose freshman calculus comes with extra theory.</p>
<p>Statistics and Physics B are non-calculus based; most majors that require these subjects require calculus based versions of the courses (however, even Physics C is not always accepted, though it will be better preparation than a “regular” high school physics course or a Physics B course).</p>