imho not a simple subject to answer directly :-/ and very sensitive but lets first look in some facts..
"God created the universe and heaven in 7 days.."
"The skys created in 7 days .." (from another holy book)
"Women is created from mans rib.." (from another holy book)
:-?

Now , its obvious that those statements dont help believers in the eyes of logic..
And looking in history to all those religion wars, religion painted political fights,
burned and deadly punished people and the blood shed..

its not that hard to deduce mankind suffered badly just because of religion..

and for many centuries stopped human development ..and still heavily used and abused
to control billions..

but on the other side, the questions remains :
how you manage millions-billions of food, sex hungry illiterate, ignorant masses.. :-/ :-/
and can you neglect the mankinds fear of death and the search for immortality

and to hold a virtual hand in case of desperation..

from Nickbat :
"The majority of religions practice a moral code, to which adherence is of benefit to those who subscribe"
which I believe is correct

and was the initial intention to build religion..
from Lioned ;
"You will need to define 'God' for me to answer.
But for the avoidence of doubt god is whatever you want it to be,and if you
believe that and it helps then fair enough"
wise words..

and my idea:
if you define god like a human who punishes you with hell ,
if you define bad as evil and if you use religion to control me my answer is a big NO..

if you define god to be the total of universe and its laws like mathematics,
physics,chemistry and so on and all the creatures living (not only human kind) to be as its own part
(which says STMO is also a part of god and correct in his statement and saying he need pills

-yes god is not perfect

)
and says we all have our spirits which we need to mature and seperate the good and bad (not for the fear of hell)
then count me in..

and for criticising atheism,
try waiting for death without any hope and expectation other than being a part of bugs and soil..