God of Food? I'll just happily stuff my face the whole day, turn the rivers to wine and honey, make trees grow crispy bacon and muffins grow out of the ground.
It would be cool to be the god of gravity and be able to control and bend gravity and how objects react to it. I would live here on Earth, but people would not know I was the god of anything, so I would be able to impress people with my gravity-defying acts.
God of doing whatever the hell I want. As in, if I wanted something to happen, I would just make it happen.
I wouldn't abuse this power, as I would have no reason to, and I would probably not even use it very often. It would mostly be just be used for acquiring food, water, and electricity, so I wouldn't have to work and could just do nothing all day. Pretty much just an excuse to be lazy and never do anything again.
I would exterminate those who prosecute and abuse others in the name of their religion. I would also exterminate corporate criminals like the Monsanto owner and the pharmaceutical and Insurance company owners who corrupt the government for profit.