GFW Radio and Idle Thumbs, while very similar in a lot of ways, were still very much their own things in my opinion and as such it feels a little unfair to compare them.
Part of what I mean by that is that both podcasts were started for fairly different reasons. GFW Radio was started as something that largely was supposed to be, from what I've heard, a supplement to their magazine (R.I.P. CGW), meanwhile Idle Thumbs from what I remember was started because the fellas thought a few folks might be interested in hearing the conversations that they were having anyways. Of course GFW Radio almost immediately became it's own thing rather than a supplement to the magazine, but hopefully some of you get what I'm clumsily trying to say.
Nothing to with anything, but I only just realized that my two favorite podcasts also happen to have produced hilarious and catchy songs. Coincidence?