Race to the Right
I'll have more to say after listening to a few weeks' worth as I catch up. I've heard enough to say they're noticeably smoother and I like several of the topics they chose.
About the only negative is that the podcasts are 128kb MP-3 files, which is practically CD quality, and therefore eats a lot of room on my MP3 player. Prager uses 64kb (FM quality), and most use 32kb (AM quality) or less.