God gave humans and Angels free will. The ability to make our own choices. He created us for his own Glory and Pleasure. He knew that we would sin, so he made the way out of sin AS EASY AS IT COULD POSSIBLY BE. He sent Jesus to die so that we wouldn't have to. But then, he raised him back from the dead. All we have to do is believe that.
Well... I could point you back a hundred pages to how I describe that I don't believe in any kind of meaningful free will at all, but I'll just leave it at that: I don't believe in free will. It doesn't follow from natural laws so far as I can see. It's entirely illusory.
And regardless, it still begs the question of why God wanted to create us if he knew we would continuously make Him mad and screw things up. I know it's been discussed a lot throughout the thread, but it really paints Him in a very dim light. At best He's not omnipotent (can't prevent the world from being awful), not omniscient (He didn't know we'd screw things up) or He's a pretty evil being. Or I guess you could say that logic to Him is entirely alien to our notions of it, but that feels kind of like a copout to me.
I think the general consensus among some of the posters here at least is that God really isn't completely omnipotent or omniscient. If He was omnipotent then He wouldn't be bound by any laws, even His own. He might be omniscient, but if so that means He's pretty awful since He creates people He knows will go to Hell.
Interestingly, the pastor I mentioned earlier believes that God really is just mean sometimes, but is omnipotent and omniscient.