Joe Rogan definately. Not even a competition. The long format with interesting people is hard to beat. I love how he doesn't try and smear people when he does the interviews. Of course, I don't listen to every episode but he releases them so often so there is always something interesting to hear about. Joe Rogan is how journalists should be like.
His approach is very commendable. He listens, pulls people up when they say things that need further explination or sourcing and has a wide range of guests. He takes a lot of flak about being "right-wing" or missing things every now and then but I think he honestly tries to do a good a job of getting objective, fact based interesting topics covered by experts or "famous faces"
Being about as left as you can get in the States without being a complete and utter nutjob, I agree with your assessment. He has such an honest way of approaching whatever it is he is talking about. I might disagree with some of his conclusions or premises, but I do enjoy listening to him for a solid alternate point of view.