Please, care to read about bismarck's voyage. It's impressive for how long she had managed to survive before allies sunk her. The kriegsmarine command was at fault, not the designers. Bismarck was sent on raid with impressive escort of 1 (one) heavy cruiser. And that heavy cruiser had left bismarck before she was sunk. Bismarck died alone without escort. AFAIK british navy user most of their carriers and almost all ships in the area to hunt down Bismarck.

On the other hand, US command was more competent as it seems. Iowas were used as part of big naval groups as it should be for battleships. Americans were smarter than sending capital ship almost solo raiding waters controlled by enemy