Eh.
I figure it's easier to believe in free will than not to, because the latter involves a lot of mental acrobatics and double think to really function whilst believing. If you try and use it to just justify doing whatever you want(heh) to, it just makes you a dick, and that's still kinda true if you use it to say something like 'well everything must be the way it is now because that's how it will have been no matter what because no such thing as free will,' and then something about how trying to change the status quo is futile (despite status quo changes having occurred many times through history).
And if you just go on acting no differently, then you're just pretentious, there's no point in not believing in free will, and while you could make the argument that you believe in it because even though you can't actually change what your behavior will be, you know the truth.
Though the idea of knowledge, if there is no free will, is kinda moot. As well, you could make the argument of no free will based on a purely rationalistic argument. But like I said. What's the point?
If there is a God, and He acts as He does in the Bible, He is not omni-benevolent, or even all that nice of an entity, as far as I can tell. It's redundant to me if he exists or not, or rather whether I believe in him or not; why would I pay homage to an entity with fewer apparent morals than I? If I go to hell for not believing him, I dunno if heaven was a place I wanted to go in the first place.
...feel like a bit of an ass for just spouting opinion/belief randomly when I come in. >.> Apologies if that's faux pas.