I listened to some other podcasts that a friend recommended me like "the 1up podcast", but by comparison they were craptacular. Don't ever do any "I belieeeeeve that I gave this game an A minus. 7 point 4 out of 10 for gameplay." type stuff.
I tried listening to one of the shows, but I found myself loudly disagreeing with what was coming out of my headphones...and then I realized arguing with my headphones was kind of crazy. Since then I haven't tuned in, but maybe I'm ready to give it another shot. From the sounds of things though, your podcast has really taken off and gotten quite an audience.
Keep on rockin' it! (even if it gets me all riled up from time to time)