Wow! This piece actually made my day. My hat off to Fox New's Brit Hume and this, well, fitting advice, especially in the Public Square:
Christianity is uniquely and especially about redemption and forgiveness. That is what the cornerstone of what the faith is about. Now other faiths aren't hostile to the idea, but think of what the message of Christ and Christianity is. It is that the God of the universe sent His only begotten Son, who died a hideous death on the cross, to atone for all of our sins. And we are thereby offered through that act a new covenant in which we are offered forgiveness and redemption on a continuing basis in return for our faith in God and our continuing efforts to live the Christian life. That is a unique doctrine.
And in the face of competing religions, I submit the following from the inimitable G.K. Chesterton: "The Christian ideal has not been tried and found wanting; it has been found difficult and left untried."