What difference between the Iranian regime and Isis, the Islamic barbaric terror organization?

What difference between the Iranian regime and Isis, the Islamic barbaric terror organization?
 I think that Iran is as dangerous as isis against democracy and freedom. Iranian terror organization Sepah Quds as dangerous as isis aganist the world. because the West must know there is no difference between the Iranian regime and isis, if the United States would cooperate with the Iranian regime, it means that the Iranian religious dictatorship has deceived the American authorities. Hezbollah, isis, Hamas and the Iranian regime all equally right and follows the same idea, the Iranian regime is the major threat aganist Israel, many times Iranian leaders have spoken to want to clean up Israel from the earth, Iranian regime threatens constantly Israeli people, they say we will acquire Islamic atomic bomb and turn against Israel.