"As a Jew who is a Catholic convert, Pope Pius XII is one of my all time heroes. During the holocaust he helped over 350,000 Jewish people to safety, hiding thousands in the Vatican and other churches, convents and rectories. "Read more about him in this article: http://en.wikipedia.org/wiki/Pope_Pius_XII_and_the_Holocaust
Pope John XXIII - beloved, gentle pontiff who convened The Second Vatican Council. After so many years of the aristocratic, cold Pope Pius XII, this warm man who came from peasant stock made the Church much more human.