I understand about your confusion on which science course to take your senior year.
Since you have already taken regular biology and chemistry, I highly recommend that you take an AP science class in your senior year. (Especially, considering the schools you're aiming for.)
Physics is not a required subject for admission in your case.
I highly recommend that you take AP Biology.
It's going to take up more time and effort but that's what colleges are looking for.
They're looking for classes that are going to prep you for college workload.
I hope this helps.
If you need any other advice, feel free to post more questions.
Good luck with your studies.