Columbia is obviously a top notch program, and very selective at that.... it seems like many people are bitter b/c they didn't get an interview there. I interviewed at Columbia, HSS, and HJD. Columbia is definitely one of the stronger programs in NYC. Here is my assessment:
Reputation: HSS > Columbia > HJD (it's HSS)
Operative experience: HJD > HSS = Columbia (HSS has more cases, but too many fellows and hands-off attendings; Zuckerman is resident advocate and preaches HJD attendings to let residents do a lot of cases).
Research: Columbia > HSS > HJD (many columbia residents win OREF grant award, slightly higher than HSS residents I think)
Resident coolness: Columbia = HSS > HJD (I'm sure HJD have some good guys, but I thought HSS and Columbia residents carried themselves very well).
General relationship (among attendings and residents) within the program: Columbia = HJD > HSS (all 3 programs have arrogant attendings, but HSS has a lot of inhouse fighting due to great emphasis on financial bottomline, hence competition and politics).
This is only my humble opinion and perhaps better approach to NYC programs evaluation.
loving_ortho