Odd not to see an episode from the Odd Lots podcast here (going by how often it gets cited in economic/supply chain discussions around here)

My favorite would certainly be an Amp Hour Episode if I knew which one to pick. Have still held out for the annual Keyzermas Episode so that one could easily take the title.Chris Gammell is just an all-around cool dude who's always asking the right questions to get the most out of his guests.

Honorable Mention goes to some reverse engineering podcast that must remain unnamed. Its great but far to infrequent.