For the record, medical schools undoubtedly take undergrad institution’s rigor into account when assessing applicants. Of course the goal is always an “A” but I personally know many JHU students (I can name 12 off the top of my head) who have been accepted to top 10 medical schools with below 3.6 GPAs. They were difficult majors (BME, ChemBE, Neuroscience, Biophysics, etc.) and scored extremely well on their MCAT (36+ on the old scoring system), which is a common scenario for many students at Hopkins. For your own sake though, don’t look at undergrad institutions solely as stepping stones for medical school. Undergrad serves its own purpose, so please consider more factors than just “which one will get me into medical school.” There are many roads to medical school and focusing on medical school admissions during undergrad (especially your first two years) will cause you to miss out on many of the benefits and opportunities undergrad offers.