(July 10, 2012 at 5:24 pm)MysticKnight Wrote: 1. Evil/Suffering
2. Bad design in nature, and in some features of humans.
3. Arguments against free-will.
4. God not showing himself in obvious undeniable fashion.
5. No guidance (only applicable if you don't believe guidance has been sent) [this argument is made by people whom believe in guidance, "if there was God, he would send us a form of guidance/communication", and it has some strong persuasion, see thread about "leadership" for example]
6. Imperfect World (similar to 1, but slightly different).
Please add some if you know more.
I think that all or most of these could fall under a more general category of "Lack of expected evidence for God".
Lack of evidence IS evidence of absence (although not PROOF of absence), particularly when claims are made that the god in question intervenes in the real world.
Regards
Grimesy