Although you'd never know it from content on the BBC, the late Prime Minister Margaret Thatcher is viewed by Britain's Members of Parliament as the most successful post-World War II PM. So says a story in the Daily Express (U.K.) reporting poll results.
Parliament has a Conservative majority at present so the selection is not entirely surprising. You could say that Britain's Conservatives honor Thatcher in the same way that Republicans honor her friend and contemporary Ronald Reagan, and for similar reasons.