They argue against religiosity, the ones I know of are brettkeane, theamazingatheist, CaptainOAwesome (Admittedly, he doesn't even try and debate with the religious, he just makes fun of them without any remorse, I think the latest were the Wiccans), imrational, greydonsquare, xild, and many others.
Recently, however, Nick Gisburne was banned, for using background music (That's their excuse, he made a video citing passages of the Koran that called for violence and Jihad which got pulled for 'hate speech', however he made a Christian one before and it wasn't pulled), however, if you go onto youtube you can see the idiocy of this.
Anyhow, I thought someone here might be interested. So, I'll leave you with a clip of Nick, here.
