Bucky
He would be hungry often but with the supers here food wouldn't be a problem. After the first few years, the hunger would die down. He would be stronger, faster, but he would have an aversion to the sun or UV lamps, as in burning flesh and eventual death if he stays in it too long. Other skills would come out in time.
The other stuff is myth. Anyone would die if you stabbed them in the heart, Christian articles do no harm, and garlic is delicious. Though his taste for food will be very dulled. Alcoholic beverages will have no effect on him, neither will drugs unless they are in the system of someone he's feeding off of.