User blog comment:TheAlphatheOmega/World of Warships Beta/@comment-27822411-20150313013045/@comment-27820070-20150313030555

More things:

The IJN Anti-Aircraft guns on the IJN Yamato (and pretty Mach every other IJN ship) were terrible. They lacked accuracy, they were manned by poorly trained crews and what not. The US had more AA coverage, better AA guns, and significantly more trained crews.

The Armor composite of the Yamato was not great at all. What saved it was the actual thickness of the armor. The armor on the Iowa was made out of better armor composite, but was thicker.