For my country, Italy:
Best President of the Republic: Aldo Moro. The elder Christian Democratic statesman and former Prime Minister was elected as President in 1971 (in Home Line Christian Democracy choose Giovanni Leone for one single vote) and realized the Historical Compromise between CD and the Communist Party of reformist Secretary Enrico Berlinguer. He was also a personal friend of Pope Paul VII, an enemy of the Mafia (that was subsequently defeated during Mafia Wars in 1982-1992), a proud Europeist and an unapologetic pacifist. He was author of European proposal against Death and Life Sentences. He is one of most popular Presidents of Italy together with Alessandro Pertini, his successor in office, and Carlo Azeglio Ciampi.
Best Prime Minister: Enrico Berlinguer. The young reformist western-minded Secretary of Italian Communist Party is a widely popular figure in Italy: after the Historical Compromise, he won the 1976 General Election and was nominated PM by President Moro, in alliance with Socialist Party and some minor parties. The Berlinguer a Goverment is remembered for his great social and economic reforms regarding especially healthcare and education system, for defeating the Red Brigades, exposing the P2 Plot and starting the Mafia Wars. Berlinguer's opposition to Reagan Euromissiles is also remembered with national proud. His strongly support for Eurocommunism was the beginning of a new era for European Left: at the beginnings of the 1990s Eurocommunism Goverments were in charge in Greece, France, Spain, Portugal, Sweden and United Kingdom. His death in office in 1984 was mourned as a great national loss and his funeral saw the biggest participation in Italian History.
Worst President of the Republic: Vittorio Feltri. The ultraconservative director of Berlusconian newspaper Il Giornale ("The Journal"), he was chosen as right-wing majority candidate for Presidency in 2013 and subsequently elected. President Feltri is noted for his right-wing partisanship, his racist attacks, his vulgar and offensive language, his insults and his abuse of alcohol. He was widely condemned for his pro-Hitler comments and his death threats to blacks immigrants and others minorities. After his attempt to cancel the Constitution to make a Monarchical Savoia Restoration, in 2016 he was removed by the Parlament for "attack to the Constitution" via impeachment (the only case in Italian History) and arrested. Today he is serving his sentence in a mental asylum and is remembered as the shamest President of Italian Republic.
Worst Prime Minister: Claudio Scajola. A former Christian Democratic Mayor, he was nominated Interior Minister in the Second Berlusconi Goverment. After only one month in office, during the G8 Genoa Riots, he ordered to Police and the Army to open fire against protesters, causing more than twenty-five dead. When the Premier Silvio Berlusconi was bad injured during a New Red Brigades retailation Scajola was able to be nominated new PM and launched a long season of repression: thousands of students were arrested, many universities were closed, hundreds of journalist were barred from their profession and TV channels were put under goverment control. His Interior Minister Francesco Storace was the symbol of political repression: his attempts to assimilate the German Minority in South Tyrol caused great clashes in Europe. An other unpopular act was Scajola's decision to participate to Iraq War. When his new authoritarian constitutional reform was rejected by voters in 2005, a corruption-tainted Scajola was forced to resign in favor of former Foreign Minister Gianfranco Fini and subsequently tried in a long and controversial trial.