Still I am also keen on using World Normal maps instead of Tangent maps as the parts have consistant facing, so this will really help the shader give me a very good look.
If you dont need to tile your textures over the level-chunks, because the chunks arenīt to big to use 1024*1024 (or even 512*512) textures than it is definetly the way to go since Object/Worldspace normalmapping is faster and looks better in same cases
