I'm not a fan of the belt at all (not even for fun spankings), but I think the reason for that is because the only experiences I've had getting spanked with belts involve those that are too thick and heavy, too narrow, and too... unwieldy. I honestly think I will enjoy being spanked with a belt if I can just find the right kind. I absolutely love it when my partner sometimes snaps his belt after taking it off, even though I don't enjoy the feel of his belt on my bottom. The sound makes me jump, in a good way.
I'm still looking for the perfect spanking belt, which I imagine to be wide, thin, and flexible. And from reading others' posts on this thread, I should stay away from braided ones too!