Faith by definition is - The assured expectation of things to come though not yet beheld.

So you are expected to believe that somehting is coming even though there is no proof or evidence that it ever will.

My personal beliefs are Agnostic but definitely not Athiest.

There is simply too much evidence of intelligent design for me to believe there is nothing... and yet... no one has ever given me a description of anything that I could agree with in the context of God. I have faith that there is a higher power but I simply do not believe that any of the so called religions on the planet have anything close to the right idea on what is the right path to follow Him. Being raised in a Christian house hold I never really felt they were correct in their teachings. And don't even get me started on the Devil.

So in answer to the question in the title of this post - Faith would supercede proof for Christians simply based on it's definition alone.