If you want to keep open the possibility of medical school, then I hope that you have budgeted for a full 8 years. The last 4 of these will be expensive and it will be important to minimize debt even for a future doctor. Of course there are other very worthwhile things that a person can do with a degree in biomedical engineering and I am pretty sure that I have personally benefited greatly from a few of them.
I am not sure which W is UW. I am guessing Washington, although Wisconsin is also a very good university. Either way I think that it is likely but not a safety.
Otherwise I think that you have a good list of schools and have probably categorized them correctly.
MIT might be a tough place to maintain a “medical school worthy” GPA. Toronto might also. However, some students clearly do at both schools and you seem to have as good a chance as anyone.
Mostly I think that you should make sure that your safeties really are safeties and also make sure that you would be happy attending any of them.
And if budget matters at all (particularly if you end up with 8 years in university) then keep in mind that you are in a WUE/WICHE state and you might think about whether there are any other WUE schools that you want to consider.
I would like to add: You are doing very well. Good job to this point!