The big difference between Evolution and Christianity can be summed up in two quotes from their most prominent figures.
The first figure, Charles Darwin, is prominent in Evolution. The less historically educated among people credit Darwin with the discovery of Evolution. If you think of Evolution, you're going to think of Darwin. Here's what he said with regard to a person's reasoning ability:
"With me the horrid doubt always arises whether the convictions of man’s mind, which has been developed from the mind of the lower animals, are of any value or at all trustworthy. Would any one trust in the convictions of a monkey’s mind, if there are any convictions in such a mind?" (1)
In Darwin's view, the human ability to reason is doubtful. It's possible that we can trust our reasoning ability to help us stay alive (though even this can be reasonably doubted), but any claim that doesn't help us increase our breeding potential (which would include Evolution) can't really be verified.
The second figure is the apostle Paul, known for having once persecuted Christians even to death before meeting God, converting, and writing a significant portion of the New Testament. Under inspiration of God, Paul wrote "test all things, hold on to that which is good." (1 Thessalonians 5:21).
In Paul's mind, our creator has endowed us with a powerful reasoning ability. We not only have the chance to discover ways to make more babies, but have both the ability and command to test everything. Does this improve our crop yield? Test it. Does that increase the productivity of our herds? Test that, too. This person says we're descendants of lower animals! Test, test, test!
The stark contrast between the view of Evolution and the view of Christianity with regard to human reasoning says a lot about the veracity of both religions. While Christianity allows, and even commands man to verify its own claims, Evolution denies us the very possibility of philosophical thought. While Evolutionists frequently boast about how rational they are, they commit intellectual suicide by dragging man down to the level of apes. Far better to follow the God who gives us the ability to think than the fool who erases our foundation for believing we can.
References
1. Charles Darwin, Letter to William Graham, 1881