And witness this thread, the Christians take a lot of heat for this. But the Muslims are the ones making death threats (as happened just this week to SouthPark's Parker and Stone) and carrying them out (on Theo Van Gogh for example.) You can criticize or make fun of or blaspheme Christianity and you will not be physically threatened for it. Islam not so much.
Most Muslims don't do the death threat thing. Only a very small, severely radicalized portion of them go to that extreme. The vast, vast majority of Muslims are not remotely that way so it's unfair to lump them all together. Every single one of my muslim friends would never dream of such things. That said, where the Muslim world does come up short (IMO) on this issue is in condemning those extreme radicals who do go the death threat route. IMO, I don't think there's enough condemnation or outrage from the Muslim world at large when they hear such things from their more radicalized brethren.
That also being said, yes, Christians take a lot of heat, but I think deservedly so, because a hell of a lot of them tend to do dick-ish things like this:
http://www.youtube.com/watch?v=rgMr_Zc3OtAGoing around self-righteously claiming that your religion is better than everyone else's while simultaneously denigrating everyone else's religion is something for which you
should take heat. If the roles were reversed, and some Buddhist was on TV talking about how Buddhism is better than Christianity, I can only imagine how up and arms the right-wing Christian community would get about how this is "yet another attack on Christianity". Yet when they attack someone else, it's perfectly okay.