Taking pre-reqs a-la-carte vs. taking a post-bacc pre-med program?

I’m looking to fulfill pre-reqs for med school. I already have some of the sciences, but need to finish them. I have a BA. Would it make a substantial difference whether I do an official pre-med post bacc or take the pre-reqs a-la-carte at a community college if my I keep a high GPA? Cheers!