I'll go, somewhat reluctantly, with Nasser due to a pitoval role he played in the anti-colonial movement, fostering cooperation between third world countries and domestic reforms. My reluctance steams from reasons obvious, though it was the sad reality of that age.
Sadat is terribly overrated. He reintroduced certain elements of the Islamic law, oversaw an "economic liberalization" that undermining many socioeconomic achievements of the revolution, and was obsessed with prosecuting left-wing elements, while being unable to see the growing power of Islamist movements. His reputation rests mostly on Camp David, which was arguably a very big deal, but not enough to make him "the best".