My favorite is Arcology, even though a couple of the players on the actual play are super "munchkin" *cough* Maverick *cough*.
You can really feel the love of the game in Critical Glitch, even though the quality of the sound is poor. If you are going to do a Skype based cast, at least get good equipment.
I haven't listened to Neo-Anarchist yet, I've downloaded them and am waiting for a slow work week to binge.