The Agnostic position is the only logical position one can take, as it is not faith-based and it makes an assertion that is true: we don't really know if a God(s) exist or do not exist. There's no proof that one does, and there will never be proof that none do.
Further, I believe that the Gods described by every major religion were invented by humans.
As for strictly believing there is no god, it would require super-natural evidence to prove the non-existence of a super-natural being. Therefore, it's a nonsense question.
On the whole, this classifies me as an atheist. It requires no faith to believe that a mystic book, and a bunch of people who believe in it, are self-deluded. It is the extraordinary claim that requires extraordinary proof. Asserting the extraordinary claim is most likely not true is not a matter of faith, it should be the default position - especially after the overwhelming lack of evidence.