Just looked at the 2011 admissions brochure for Columbia and here are a few quick facts:
Applications for Full-Time Study 2011-2012
Master of Science
Applicants 850
Admits 396
Expected to Enroll 258
Didn't find any admissions stats on the NYU website, so it's hard to compare.
Just out of curiosity, does anyone know what acceptance rates are like for journalism programs? Also, is there a ranked list of schools? Still waiting on Columbia (like everyone else), but I wish schools would publish admissions statistics so I have an some idea of their ideal candidate.