The more important figure is applicant to offers than anything else. But the statistics game can backfire, as a lot of people will play it, thus making the "easy" schools ultimately the "hard" ones. Plus who wants to spend 5/6 years in a school they don't really want to go to?
The "Getting into medical school, 200? entry" series also have these stats in quite a lot of detail if you are really interested. 2007 entry one should be out in about june.