I like to believe there's a G-d in the sense of us all being in the same energy system, in which G-d is there in a passive, interconnected sense. I've personally never been able to grasp the anthropomorphized "dude in the sky. "
To me though it tends to be irrelevant as far as my decision making process. I either do what's my best idea (if there is no G-d) or I'm getting some external sense or what's the right thing to do (from said G-d.)
Just mt take.