I'm more oriented towards plain Agnosticism without Atheism.
I've been a theist for a long time, until I discovered it was not the best approach for me.
I mean, we can't define or imagine what God may be, our minds are not even able to conceive it, and after all, we really don't need it to be good, genuine persons.
Also take note that Buddhism (or at least part of it) is agnostic, saying that the "problem" or God's existence is irrelevant for the spiritual progress.
Of course, Jesus said that it is possible to know God and depending on whether you accept this your eternal fate hangs in the balance.
So, at the very least you can't stay on the fence. You need to decide Who is right.
Being on the fence means deciding not to believe what Jesus said. That in itself is an eternal decision.