To provide a legitimate answer, I think there is one useful statistic that is not found in the MSAR.
The MSAR gives you the total number of applicants, along with the number of people who ended up matriculating. It does not provide data on the number of people who interviewed, nor the number of people actually accepted, only the number who ended up matriculating. The MSAR does however, give info on racial/sex breakdowns etc if you care about that.
The US News provides these two data (number of people interviewing and number accepted), which I think can be a useful/helpful/interesting statistic. The combination of data from the MSAR and US News gives you about as much info you will ever get statistics wise.
There is ranking data for residency directors about prestige etc, but mind you, look into their methodology and you will see that these data are taken from a survey of people with about a 40% response rate, so take that data as you will. This is further convoluted by the milions of factors that go into a subjective ranking like a survey, and how much of an effect that really has on your education/eventual residency placement blah blah blah this has been discussed on this forum ad nauseum.
But yes, there are some useful things to be found on US News. Worth your money? You decide