It seems to me that, taking all the known facts into consideration and applying a little logic to the subject, there is every reason to believe that there isn't a god and no reason whatsoever to believe there is.
In the end, the onus of proof lies with those who believe that there is someone/something out there which we can only accept if we "have faith" to show why we should suspend our logic and ignore the total lack of evidence.
it's not our job to disprove the irrational beliefs of others.
Jim Carroll