Congratulations.
When you envision yourself in EM, do you see yourself working in a highly urban or highly rural environment? I am not a specialist in this area, so I think your opportunity to "do more" and understand rural vs. urban EM is up to you to set up for a strong residency. If both are Trauma 1, I don't think either clerkship will bore you.
For RWJ, what is involved with the new medical school building? You are only there for at most 2 years.
Being within walking/biking distance of your lectures is a plus (assuming parking isn't too costly), but once you start to travel for clerkships, you should think about car expenses.