Manny,
I believe that I referred to German battleships/battlecruisers/armored ships, not just battleships. And, even the most cursory review of capital ship involvement in WWII shows that they were far more engaged than in WWI.
British and American capital ships participated as convoy escorts, AA platforms, carrier escorts, in shore bombardment, and against surface warships. HMS Renown engaged Scharnhorst and Gneisenau in the Norwegian campaign, HMS Warspite devastated German destroyers in the Norwegian fjiords. HMS Hood and Dunkerque hunted for Graf Spee. USS Massachusetts engaged Jean Bart in a gunnery duel, putting her out of action. Countless older British and American battleships served as convoy escorts, even during the U-Boat "Happy Days". HMS Renown, Warspite, Barham, Queen Elizabeth, and Valiant actively fought against Italian surface ships in the Mediterranean. USS South Dakota and Kirishima fought; Kirishima and USS Washington fought. Surigao Strait saw American battleships fight Yamashiro, Fuso having been sunk by destroyers earlier. HMS Hood was sunk by Bismarck; Bismarck was sunk by HMS King George V and HMS Rodney. And, I am just scratching the surface; American and British capital ships fought in virtually every major naval engagement of WWII. Of this there can be no doubt. In WWI, they mostly sat at anchor.
German capital ships were engaged from September 1939 and remained very active through May of 1941. Granted, they were not supposed to engage warships due to their limited numbers, but clashes did occur. Graf Spee, Deuchland, and Admiral Scheer each engaged in commerce raiding. Scharnhorst and Gneisenau participated in the Norwegian campaign, sinking HMS Glorious (a CV) and fighting with HMS Renown. They also actively participated in commerce raiding, culminating in their successful cruise of March 1941. Following the loss of Bismarck in May 1941, German capital ships were less active, with Scharnhorst and Gneisenau being continuously damaged in Brest. But, Tirpitz was positioned in Norway to operate against the Murmansk convoys. After the channel dash, Scharnhorst joined Tirpitz and Lutzow in Norway. Lutzow participated in the Battle of the Barents Sea (a fiasco for the Germans) and Scharnhorst was sunk by HMS Duke of York in December, 1943, ending active German capital ship activities against the convoys. In WWI, they mostly sat at anchor.
Again, French capital ships sailed against Graf Spee, Deuchland, and Admiral Scheer. They engaged British and American battleships.
The Japanese Kongo's were heavily engaged against American forces, Kirishima being so heavily damaged by Washington that she later sank. Unquestionably, the other Japanese battleships remained in reserve.
The Italian battleships avoided action but sailed on numerous sorties.
I really fail to see how capital ships were less active in WWII than in WWI. Far from avoiding conflict, they actively fought throughout the war.
Bill Morrison