People Can't Choose To Believe, Therefore Christianity is False.
The Following is a contribution from The Dude in the Atheist RFC for Empirical Evidence... I think it is brilliant.
Christian salvation doctrine clearly stated in the bible dictates that in addition to good deeds, a "saved" follower must, above all else, choose to believe with no doubts. If one does not utilize the "free will" given to him by god and choose to believe, they will be banished to an eternity of hellish suffering upon death. No amount of good deeds over a lifetime will save a person if they do not choose to believe in the biblical god/Jesus.
The problem with this biblically-stated doctrine is that humans are naturally unable to choose to believe in anything, as belief is the result of biochemical/neurological processing of evidence in the human mind, and how information is processed is biologically unique to every individual. The way an individual processes information is absolutely out of their control - one cannot simply choose to accept evidence, it must be processed and evaluated by the brain, and the result of this processing is either non-belief or belief. Humans are born with specific genetic tendencies beyond their control that dictate how to process information, which can then nurtured or suppressed based on outside factors such as parenting, education, social influences - all of which are not within the control of the individual.
With this premise laid forth, the biblical requirement for salvation based on choosing to believe goes out the window, and thus in my mind dismisses the entire doctrine as jibberish.