As for the Quran, one thing we are taught about Satan is that he mixes lies with the truth. It's unsurprising that there are many, many good things in the Quran. One could even find laudable tenets in the philosophy of Satanism. But you really have to look at the fruits of a religion to determine whether it is really of God or the Adversary.
Iran is a country run entirely by Islamic clergy. Therefore, one would think that the truest expression of Islamic government would be Iran... a country that is the world's leading source of terrorism and leading violators of human rights.
Someone care to tell me where my reasoning here is wrong?