Hi Kurt,
I've just finished a dissertation on the impact of the VHF timetable on the West Coast Main Line. When I looked at passenger responses toservice quality I used the data from passenger focus surveys.
http://www.passengerfocus.org.uk/new....asp?dsid=2117
http://www.passengerfocus.org.uk/new....asp?dsid=3568
I think there might be sections in these latst reports that show passenger satisfaction rates for train and station facilities for each operator if this helps.