Comparing Second World War damage control

Which country had the best and worst damage control in the Second World War?

Japan is the strongest candidate for worst; Britain and the United States are the leading candidates for best, depending on the period considered.

Japan is presented as the weakest case because serious damage-control shortcomings extended across a broad range of major ships. Russia is mentioned as another poor performer, but the comparison is harder because it fielded fewer large assets of the same kind. Japan's institutional weakness is therefore more revealing than a handful of isolated ship losses. British and American practice form the leading comparison for best performance, with the exact ranking depending on the period and measure used.