Website for comparing hospitals

I was recently asked to fill out a survey for one of the hospitals I stayed at recently.  The survey results are reported to the US Dept of Health and are available on the web here: http://www.hospitalcompare.hhs.gov/.

You can choose up to 3 hospitals to compare at a time.  I found the most helpful info to be at the bottom of the Results screen, where you can see how people reported on their treatment.