I never listen to podcasts. I don't even like the term podcast. I rate it right up there with the terms "old-timey" and "home-place" in annoyance levels. HOWEVER, I want to talk about Firebase Delta a little bit, if I may. You don't mind? How kind!
I enjoy the heck out of this podcast. As far as I know, it is the only Firestorm Armada podcast so I guess it's, by default, the best. Aside from that technicality, it really is a great podcast. The group that puts this thing together really loves the game and just have some fun conversations about tactics, rules, scenarios, and anything else that comes up. Most of them seem to have picked the game up for the same reasons I did, and that's 40k fatigue. I'm just a few episodes into it right now but it's good. Check it out: Firebase Delta. You can also check them out at Firebase Delta on Facebook.