Would the other Admiral-class ships have matched Hood's armament?

Would the three other Admiral-class cruisers have carried the same weapons as Hood?

Probably for the main armament, but armour and secondary-battery details could have differed.

The cancelled Admiral-class ships would most likely have carried broadly the same primary battery as Hood. That answer reflects the relative stability of the class's main offensive requirement. Armour and secondary batteries are less certain because revisions and contemporary design debates left more room for variation. The distinction separates a probable common class feature from details that cannot be stated with the same confidence.