Is the public option better?

Here is an article written by a friend of mine, that shows that the public health care option (Medicare) denies a higher percentage number claims than the main private insurance companies. 

http://www.examiner.com/x-17336-Midland-County-Public-Policy-Examiner~y2009m10d8-Medicare-denies-more-claims-than-private-insurance?cid=examiner-email