Research, thesis, capstone projects, paid work, etc. Stuff you can put on a CV (nobody lists their GPA on a CV--though people do list if they graduated with honors).
I was an art major, so I had a senior art project, art exhibitions, portfolios, etc. If you're a science major you should have something to show for the work you've been putting in--research, presentations, etc.
Also, think about how much time it would take adcoms to actually look one by one through all your courses. Then think about if they're doing that for every applicant--that's an unrealistic amount of time. Plus, there's really nothing to gain. Why would taking more physio courses give you a leg's up over someone who took history courses instead? The physio courses don't make you any more likely to do better in medical school.
I don't think any of my interviewers even asked about any specific classes. I even had three W's and not a single interviewer asked about them. I got an A in quantum chemistry, which was quite hard, and no one asked me about that. They did note my significant GPA improvement in post-bac and my MCAT, which are spelled out in AMCAS. They also did ask me about what kind of camera I used...
In the end, it comes down to your interviewers saying something along the lines of "definite admit--gold star," "possible admit," "definite wait-list," and "reject." If all three interviewers say you're a gold-star applicant and one of the best they've seen, the Dean of Admissions is almost certainly going to admit you regardless of what your major, GPA, or course selection was (you already made the cut when the screened you for the interview--what's there to gain by looking class-by-class?). Now, it's possible that you're able to impress one of those interviewers by talking about the courses you took, but lets be honest--no one's all that impressed by the courses we take. They're impressed by what we do with that knowledge, whether we demonstrate initiative, our sense of compassion and commitment to our fellow humans, and (often overlooked by applicants) whether we're a likeable person.
You want your interviewer to leave the interview with the gut feeling that you belong at that university and that you will be a great physician.