There are plenty of non-religious critiques of the theory of special evolution. Some are mathmatical, some micro-biological. For me, as a Christian, I am content in knowing that God is our Creator. How He chose to do it is immaterial to me, I am just glad THAT He chose to do it.
The whole concept of spontaneous generation of first life and that given enough time things get better on their own is a bit for me to swallow. It contradicts my experience and what I know of basic science.
Basically, I lack the faith to be an evolutionist.