Your "argument" in the second paragraph is entirely circular. Essentially you say that you're not under any obligation to interpret the Bible as you would any other text. Why? Because the Bible says so.

The question isn't whether Christianity's message is different or not (and it's not nearly as different as you suppose) but rather whether we can believe that message. Believing just because you like the story, or because the story is different, or because it bests soothes your existential angst doesn't make the story any more likely to be "true". It just makes the story convenient.