Bismarck was no myth, and only his nine day operation in the North Atlantic is legend.
Fact is the Bismarck was a revolution in battleship design, his beam was relatively wider in proportion to his length. This characteristic ran counter to the prevalent desire for more speed, which called for the least beam possible in relation to length. However, the Bismarck's wide beam seemed to work in his overall advantage, because it lessened any tendency to roll in in heavy seas and, thus, increased his ability as a gun platform. It also reduced his draft, which could be important in the shallow waters of the North Sea.
Furthermore, it allowed a more efficient use of space, better placement of armour, a greater distance between the armoured outer shell and the inner torpedo bulkheads, which protected the Bismarck against underwater explosions, and simplified the arrangement of the twin turrets of the secondary battery and the heavy antiaircraft guns.
More than 90% of the Bismarck's steel hull was welded. As added protection against an underwater hit, her double bottom extended over 80% of her length. Her upper deck ran from bow to stern, and beneath it were the battery deck, the lower armored deck and the upper and middle platform decks.
Armour comprised the highest % of the ship's total weight, over 40%, and qualitatively it was mounted in proportion to the importance of the position to be protected.
The Bismarck was no myth, only legend. Other battleships, Yamoto and Missouri may have been bigger or have had more advanced weaponery, but they were not the Bismarck. No one talks about the Yamoto or the Missouri, unless there watching a Steven Segal movie, ie the Missouri.
I would stack the Bismarck up against any battleship, anywhere any time.