http://www.theweek.co.uk/ http://www.theweek.co.uk/ is the closest I know of, though you need to know the political leanings of each publication mentioned, wher

http://www.theweek.co.uk/ http://www.theweek.co.uk/ is the closest I know of, though you need to know the political leanings of each publication mentioned, whereas allsides.com really spells it out.