Well, basically the way I view it is that all lives have the capacity, for lack of a better word, to be absolutely equal with respect to that question - I'm not answering the US vs. Iraqi question, I'm answering the overall question. However, if you were to ask me whose life I would spare, my mother's or a convicted U.S. murderer, I wouldn't hesitate to choose my mother. There are all kinds of gradations in between - that's why answering your question is impossible for me. I see no fundamental difference between the life of an 'innocent' American and Iraqi citizen, but I see a huge difference between the 'innocent' American civilian and the people who are consciously supportive of the horror of Hussein's brutal, sickening regime, and I also see a difference between the 'innocent' Iraqi civilian and U.S. criminals convicted and actually guilty of violent crimes. Which means that while all lives begin 'innocent' with respect to questions of your type, some eventually choose what I consider evil while others don't, and yes, we do have to judge in this world whether or not anyone feels that's to be left to God.
This is an extremely difficult and loaded question to properly answer with a poll, so I can't do it completely, it requires answering other fundamental questions as to your religious, secular moral and epistemological background, so as to inform the discussion as to your bias in answering the question.
But I think I've answered it sufficiently for my purposes.