Well, since I don't beleive in a sentient "Higher Power" I would have to go with evolution. To me, the bible was a book written to explain the unknown, and give the people a basic set of moralistic guidelines. For the same reasons the Greeks and Romans and their Gods that performed feats they were at the time unable to understand, so goes the idea of Creationism. It anserws the question of how did we get here.
Evolution may not be 100% correct, and we may never know. It is a decision based on faith, my God just happens to be Science.
And if it is totally off base, and proved to be wrong, Evolution is still a kick ass email client.