I think you are slightly misunderstanding me. I would absolutely accept admission and scholarship to syracuse. It definitley measures up. I am just going over last ditch scenarios in case I was forced to transfer my scholarship to the least desirable school I applied to which is Bloomsburg university. If that happened I would most certainly want to transfer out because I would not be reaching my full potential at such a school. Attending that school would not best prepare me for medical school as I plan on becoming a doctor in the military.
First thing I would like to say is that it is great that you are ambitious. That will serve you well. You are also very concerned about the quality of your education. Also a good thing.
The one thing that you still need to wrap your head around is that there may not be an optimal choice with regards to you goals.
Lets break it apart.
1) You want to go to med school. The keys to med school admissions are a) Your GPA in pre-med classes; b) MCAT scores; c) Recommendations. Note that I didn't mention where you got your degree from. Why? Undergraduate education in the sciences doesn't vary as much as you think. Organic Chemistry is the same whether you take it at Syracuse, Delaware, or any other university. Yes, you MAY get a more inspirational lecture at a top rated university. You may also be getting more graduate assistant time (how grad students earn their fellowships). Research university professors are all about getting that next grant - i.e. teaching comes in second. If you are a top student in this situation, you may get invaluable undergraduate exposure to research. But if you aren't the lead dog the view is the same.
2) You want a top quality education. Be very wary of college rankings. Those are a composite score of a bunch of metrics that university administrators often make their money manipulating. You need to ask questions pertaining to what your will experience. Are the lower division classes mostly taught by grad assistants? Do these grad assistants get screened thoroughly in their English language proficiency (i.e. can you understand the lecture through the accent)? How large are the class sizes?
3) You want Uncle Sam to fund your education both undergrad (ROTC Scholarship) and med school. Not sure if this is a "can't afford it" situation, "don't want to pay for it" situation, or "really want to be an Army Doctor" situation. Regardless, there is more than one way to get to any of these goals. However, if you choose the ROTC Scholarship route, don't expect much flexibility in choice of school. They are not here to optimize your experience. They are here to give you an opportunity to excel where you are planted. You won't have much choice in assignment in the Army. Successful officers figure out how to make the most of the situation assigned.
4) You want certainty in this school acceptance vs. scholarship acceptance. Unfortunately, the system is not designed to give cadets that. You came asking how to approach it. Good advice has been given - i.e. Accept the scholarship to the school with the highest value scholarship which gives you the most leverage IF a transfer is necessary. Otherwise, if Bloomsburg is on your offer list, but you are not willing to go, then don't accept even if the admission is a gimme. Being a top student (if you can keep your focus) grade-wise at Bloomsburg may advance your #1 priority (becoming a doctor) more than other school choices where your GPA might not be as strong. We don't know how you will react to either situation (do you rise to the challenge and underachieve when unmotivated?). Point here is that we cannot make a choice for someone whose head we aren't inside. We can give you tactical advice, which outlines some of the ways this could be played. We cannot remove uncertainty.
Last thought... If being a doctor (or at least getting into med school) is more important than the intellectual atmosphere of your undergrad experience, go to the school where you are the big fish (i.e. your test scores are higher than the rest of your peers). If you are willing to increase the risk of not making med school (btw Organic Chemistry generally weeds out 2/3 of pre-meds regardless of school) for a more stimulating undergraduate experience (while serving in ROTC) choose the upper school with the better admissions chance and higher tuition (Syracuse). Your goals have trade-offs. You will need make this choice and live with the consequences.