How would Nagato compare with Renown and Repulse against the Japanese battle line?
Short answerNagato is the stronger and newer design, closer to a Queen Elizabeth than to the less protected Renown and Repulse.
NotesFast capital ships are not all equivalent. Nagato belongs closer to the Queen Elizabeth class than to the more lightly protected British battlecruisers Renown and Repulse. Her newer battleship design would make a meeting with the Japanese battle line especially dangerous for the British pair. The comparison turns on protection and intended battle-line role as well as speed or gun calibre.