You can have a nice summary (in Italian) here.
It is in Italian, however, most of the links refer to English sources (and one points to these Einstein and Pitagorean Index). So, from this point of view, it is useful also for English readers.
I confess I did know most of the physicists in Einstein's ranking figure, but I did not know before Juan Maldacena. As usual, it is always exciting to come to know the work of outstanding scientists, even if Strings were one of the reasons that made me abandon theoretical physics.