Blade I can't help but think your information is at least several years out of date. I don't know about step scores but Sinai is considered to be the least cushy residency in New York City out of the big name programs. The 4 manhattan programs all attract the same applicants though, I remember seeing the same people over and over again as well as at the other prestigious programs in the region.
As anbuitachi said, many Columbia residents did not match into cardiac fellowship at any program which isn't something I've heard at any other program. This is especially surprising for a place that prides themselves on taking their own for fellowship and advertises this to their residency applicants. I'm not sure about why that happened but it's a pretty big deal.
Columbia does do the most lungs and hearts and Sinai does do the most livers but NYU does liver, lungs, hearts. Monte is also no slouch in terms of transplant.
Center Data - OPTN
Sinai's freida information does say that their average is >240 for current residents but it also says that for hofstra. I think we can all agree that hofstra is a low tier program. Columbia and NYU's freida information do not include a step score range.