Other than the fact that Christianity is currently one of the dominant religions on this planet, I don't see any real difference in the reliability of its claims to that of any other religion that might have had that place in the past (or might take that place in the near future, like Islam could temporarily do).
Why?
They all have holy books;
all have fulfilled "prophesy";
al have claims for miracles;
all claim to be the "truth";
etc. ....
Why?
They all have holy books;
all have fulfilled "prophesy";
al have claims for miracles;
all claim to be the "truth";
etc. ....