Why don't you believe in a god?

[BBH]

I used to not believe because of:

- The fact that there are so many Gods/Religons

- How Christianity is very closely linked with Greek Mythology, note the 'mythology'

- The way the world is so mucked up, how could God make it?

But now I do believe, not fully, but the way I see it is this:

There are very strong arguments for and against God, so basically it is up to one to choose. For me, I don't see the sense in not believing because that simply offers no hope. I might as well give myself a chance of going to heaven if it exists.