So I didnt know the difference between Osler, Bayview, and Sinai when I applied. Shame on me for not doing my research, but after interviewing at Sinai, I feel like they dont talk themselves up enough. They get bashed a lot on forums, and really they shouldnt be.
Of the three, it is the "worst." Worst in the sense that there are a lot of foreigners, though they only support J-1 visas, decreasing the desirability for FMGs. Worst in the sense they have no fellowships of their own (though they do export to some decent programs), Worst in the sense that it is a "community hospital with only an affiliation" to a major university.
But they have many benefits, even if they are seen as demerits. If your goal is to get a top-notch fellowship because you want to be the premier researcher in a field, Sinai is clearly not for you. But because they have no fellows on staff (demerit?), the residents are forced into a supra-standard education (benefit). Since they are asked to make all the decisions, do all the procedures, and run their teams, they take an active role in patient management, preparing them as superior physicians. That being said, I wasn't very impressed with some of the housestaff. Some were wizard smart, some could have done with an extra year of medical school. Regardless of their level of education, everyone was HAPPY.
Then, because of their affiliation with JHU, their residents are able to do research with the big dogs. So, while the fellowships do not fall into the laps of the residents as they might at a better named school, if the residents work at it, they too can land a nice fellowship.
I just want it known that while Sinai is the "worst of the three" it is certainly not a pididle community program that trains primary care docs. You really can succeed quite well while there. If you're a Student Doctor poster (Boards > 260 and all honors) you probably would feel cheated ending up there. If you want to learn to practice medicine, you will really enjoy it.
Bottom line JHU >> Bayview > Sinai as some one said, but dont write it off if you are legitimately considering a career in medicine.