I'd argue that the Royal Navy’s performance in WW2 was the most complex and complete form of Naval Warfare undertaken. It may have missed out in Jutland or Trafalgar Grand Fleet actions, but the complexity of the Royal Navy taskings, and the success with which they completed these was simply breath taking.
Chasing down commerce raiders and battleship actions such as the sinking of Bismark. The DD landings, enabling the largest ever amphibious landings. Multiple evacuations, often with no planning such as at Dunkirk. Implementing and developing aircraft strike capabilities and destroying the Italian Fleet at Tarranto. Combating the U boat threat, securing supply lines to the UK, the Empire and Russia. Operating in every single ocean against multiple combatants.
Operating in open oceans, in the Mediterranean, in restricted waterways of the Norwegian Fjords or supporting in land delivery such as the Dieppe Raids. With the exception of a few miss steps, particularly in the Far East these were incredibly successful. There were of course mistakes, but strategically they did exactly what was needed. That's not even mentioning the detail such as the intelligence community, the landing of SOE agents or the likes of operation mincemeat. Honestly the scale and breadth of activities is hard to fathom.