Acceptance of mythology?

I think that a lot of Christians read a very strong allegorical resemblance in LotR to their own beliefs i.e. the presence of a higher power, the use of choice and free will, the insidious nature of evil (temptation of the ring), the sacrifice of one to save many, the unconditional love, I could go on but it's too early in the morning to get in depth about this.
I personally feel that as Tolkien was writing LotR, the essence of his own faith came through into the book without him deliberately making the book into an allegorical tale.
In HP there is of course a fight against good and evil, but if there are Christian undertones , they are certainly not as obvious as in LotR.