Attlee is leader of the pack  Clement Attlee Clement Attlee.
Photograph: PA Seven years of Blairism have left Baroness
Thatcher's reputation as the most successful prime minister of
the post-Churchill era intact. A Mori poll of historians and
political scientists, most of whom intend to vote Labour or Lib
Dem at the next election, ranks her two places ahead of Tony
Blair.  The Mori survey, undertaken in association with Leeds
University, asked 139 academics to award all the prime ministers
of the 20th century a mark out of ten. The post-war architect of
the welfare state, Clement Attlee, came top with an average
score of 8.34.  Winston Churchill and David Lloyd George were
runners-up, while Baroness Thatcher enjoys a fourth-place
ranking of 7.14. Tony Blair languishes in sixth place with an
average of 6.30 points.  Propping up the bottom of the table are
Anthony Eden (2.53), who led Britain during the Suez crisis and
the caretaker prime minister Alec Douglas-Home (3.33). John
Major is in 15th place with an in