I can only agree with the comments made about the inadequacy of evidential apologetics. I was staying in a bed and breakfast on Wednesday night and found a copy of Josh McDowell's Evidence that Demands a Verdict on a shelf there. This is a book I have never looked at before but I was intrigued because it was the subject of a mass debunking exercise by a group of infidels (including our own anonymous poster) which is probably still available on the II site somewhere (yes, here we are).
The mistake made by McDowell and other evidential apologists is that they do not allow for other explanations a part from the one that they want us to believe. Most of the II critique is based on the idea that McDowell should have included all the opposing views rather than making his presentation look like an open-and-shut case. This criticism is obviously bogus, but the mere existence of the opposing views invalidates much of McDowell's argument. For instance, he claims that because the death of Jesus fulfilled so many Old Testament prophecies, it must prove he was the son of God. Well no, it does nothing of the sort, especially if the Gospels are written precisely with those prophecies in mind. Likewise, even if we grant the central historical facts of the passion narrative, we are still miles away from proving the resurrection - especially to someone whose world view forbids miracles. As Sherlock Holmes said "Eliminate the impossible and what is left, however unlikely, must be true." As the resurrection is viewed by some as impossible, another theory, however unsupported, must be true.
Which leaves us with a central truth about evangelism. Conversion is a matter between the individual and God. No human being can convert anyone. All we can do is allow ourselves to be used as instruments when He needs them for His own work. As our commentators said, apologetics is better off debunking the opposition rather than proving its own case. It is the defense advocate and not the prosecution.