The problem with "challenges" to evolution is that they are at the level of challenging the shape of the earth.I don't think it is kind or fair to reduce the work of those who have proposed thoughtful critiques to the level of "challenging the shape of the earth." I have yet to see you post any detailed rebuttal of their claims. And I certainly have yet to see a satisfactory explanation of how so much intelligence and design could spring up in the universe without an intelligent designer.
I would have to agree that I haven't personally posted a detailed rebuttal. But for you to claim that now such detailed rebuttal has not been posted means you haven't been paying attention. If you are actually curious, rather than just trying to score points, you would hike over to
http://www.talkorigins.org/