The Queen herself has been a shining example of statesmanship and of being a countries figurehead. Even if you were a republican you could not have had a better example of a person elected to portray your country. She is unrivalled in that position. The people around her including her family, not so.Would you say she is and or has been a good "leader"? There is a lot of power in a countries people being 100% behind a "figure head" Then again this is from a Mericans naïve outside the UK bubble view...
A lot of the country would agree she has done an exemplary job and well past the years she has been required to do such.