I made it through more than 5 minutes of the Chapo one, so the Chapo one.
Seeing the first part of this I see how it really would have been helpful to have had some visual aides for some of the stuff in the podcast. (I know they made one.)
Honestly I thought Hell on Earth was one of the best things the Chapo boys ever put out, I was really skeptical but it was crazy interesting and I tend not to care too much about that kind of history. The episode Hell was fucked and super eye-opening.