{ 1 } - of no value whatever, since belief in God rests on a "leap of faith" with no intellectual justification.
{ 2 } - giving strong points in favor of belief in God.
{ 3 } - proving conclusively that there is a God.

The teleological or cosmological arguments, for example, might not strictly prove that there is a God. But they might show that theism gives a more plausible account of the origin of the world than does atheism -- and this counts in favor of theism. Before making a final "cumulative-case" assessment, however, we'd have to examine both views more extensively and look for further strengths and weaknesses.