Christopher Hitchens does not loose debates. See, for example, how he, together with Stephen Fry, cleans the floor with Catholic Church people. (One, Two, Three, Four, Five). A blogger termed this debate Slaughter at the Podium.
And then there are exceptions. Half a decade ago, one day, George Galloway had Christopher Hitchens for snacks. (1,2,3,4,5,6,7,8,9,10,11,12).