The scale, the ships, the submarines. Subs, in particular; I love stuff about the U-boat campaign and the Med but there is something quite different about the Sub war in the pacific.
There's other stuff. Go into a British bookshop and there will be hundreds of books about D-day, Normandy and Hitler. Perhaps a few about the desert war and Italy. There are seldom that many about the Pacific war. I think, for me at least, the names still carry an exotic quality to them. Tarawa, Gaudalcanal, Midway, Pearl.
I think for the British as well the Pacific and the far east represent blows to the being of the Empire that the western front never really did. The fall of Singapore and the largely but important Burma campaign, for example, are elements of British history that are not as well known as they should be.
Also, and perhaps most importantly, aircraft carriers rock. They rock very hard indeed.
Pure honking, big man.