There really isn't much debate left, as others say, its your lifestyle that you need to change. Any significant weight loss will introduce metabolism changes which will have to be dealt with for life, by, basically, eating less and doing more, forever.
I eat high complex carbs and am losing. The carbs are important. Very low refined carbs, high complex carbs. :)
Very low fat
Very low salt
Very low sugar
Foods as grown (lots of veggies and fruit, not necessarily raw though)