>>713473229 (OP)Japan is the most interesting major to play as since you need to juggle land/sea/air, handle China, go on an island hopping campaign, defeat the two largest navies in the world, strangle the allies' resources, and then figure out how to invade burgerland. There's a lot going on and timing is tight.
Germany is an autopilot snoozefest. Just passively build up for 4 years and steamroll Europe, then draw a big frontline arrow through USSR.