I think the Boston schools should be placed in the reach category. I would also think about what is important to you- do you prefer a rural LAC or a large university that is embedded within a big city?
I would not ED, as you do not seem to have a clear favorite.
I agree about putting medical school on the back burner. Right now you should focus on what you want from a school, what would make you happy, etc. Any one of these fine schools is good for premeds.