Hands down, my favorite podcast is Be Our Guest. They are true Disney fans and just the sweetest people. Very informative, too. I love that they don't have egos and are very humble. During their Q&A shows, they really dig into the questions to answer them.
I also like WDW Today...but I am really starting to despise their Q&A shows. They zip through the answers (often one sentence on a very debatable topic with pros and cons such as resort or restaurant recommendations) and are often WRONG on anything related to tickets or the nitty gritty on FP+ or memory maker.
I agree, the Disney Dish podcast with Jim Hill and Len Testa is really fun to listen to.
I tried giving Lou M's podcast a chance, but it seemed too much like a Disney commercial for me.
I listen to Mouse Chat...it's a fun, laid back show...but they have one podcaster who is bombastic and tries to dominate the whole show.
I just got into Inside the Magic in the last few months...that is a good show, but I find myself fastforwarding through all the interviews.
I started out just listening to the Dis, but I've expanded. I still listen to the Dis, but I really enjoy some of the other shows out there where the focus is more on the parks and the news, rather than the hosts...if that makes sense. Not a dig on the Dis...but they have quite a different style.