Caitlin Kiernan and those nice people at Yahoo have done a guide to the World’s top street art locations. It’s not actually a “ranking” as such but naturally, Shoreditch comes first 😉
As the article points out, among the guys who have a lot to do with the emergence of modern street art in London are Banksy and D*Face
So for a great summary of the vibe in London, Paris, Buenos Aires, New York, Berlin, Miami, Navajo Nation Arizona (new to me too), Sao Paulo, Melbourne,Bethlehem, check out Caitlin’s Yahoo feature here.
Remember these aren’t the only places you find super street art but its a great start.