The worst arguments are Pascal's Wager and God of the Gaps, and while the former was arguably never intended to be taken seriously, and the latter was actually an opponent of it pushing back against a tendency he saw among his fellow Christians, both are taken completely seriously by many believers, including many who should know better.
God of the Gaps is at least comforting for now. However, the only way that it could be valid is if there are things that exist that are impossible to know because they cannot be learned from induction, but can by faith. You really shouldn't try to "prove" or "disprove" God and this argument, though it makes me feel better, just is really about eventually proving that God doesn't or does exist. If the existence of God could be proven, there would be no need for us to have religion, would there?
