I know that I've been dissatisfied with Podcast Alley and its ilk for a long time now. That's the primary reason why we recently announced that we would only be maintaining our show listing and supporting the new BluBrry from now on. Todd Cochrane can be abrasive at times, but I have no doubt that he has podcaster's best interests at heart.
A few big names have jumped onboard with the idea and the directory has just started to come to life. I find it ironic that a few of the names promoting the new directory are from commercial podcasting ventures and I am therefore somewhat suspicious of their motives, but I think everyone knows better than to mess with Dave Winer.
Keep an eye on the directory here. I hope it grows into a Good Thing(tm).