In my experience, faced with the choice you pose, I'd say--It hardly matters, at all. Either choice is likely to turn out much the same.
But for the substance of things--A&P, properly approached & prepared for, does not really involve all that much memorization--UNLESS A&P is one's first exposure in life to its subject matter, AND unless, once exposed to a topic, one retains practically nothing of it.
I have long felt (even if few seem to care) that a thorough grounding in "Medical Terminology
" will carry one almosty effortlessly through a lot of A, and a fair amount of P. Perhaps MT is no longer thought of as necessary preparation for much of anything. If that were true, then yes, one could be in for a lot of memorization (without understanding).
Best of luck.