Quora: Who do you think is the best professor in the world and why?

Definitely going to get a lot of nominations – just 1 from IIT so far though:

For example, I like Michael Wesch because he is fantastic in his pedagogical methods. Just check his wildly popular videos on Youtube or the incredible way of teaching with social media tools or the world simulation. It’s simply great! Who are some other great professors who you may have come across and what makes them so good?