You should definitely check the acceptance rate into med school for those who have finished post-bac for both schools 👍 I would call the office of admissions to get this information. If not, you should speak to student representatives who have gone through the post-bac program. Personally, I believe you should play safe and enroll into a post-bac where you can maintain a high gpa, be able to take part in undergraduate research, and study later on for your mcat 🙂 so xyz in my opinion.