There are some opinions which stated that, in WWII, both Italy and Japan actually gave Germany more problems rather than advantages.
My question is simple: which one that gave Germany more additional troubles and headaches?
No Axis Italy means no North African front, and no need for occupational troops in Greece. BUT if Italy was neutral or in Allied side, it would be much bigger headaches for Germany.
No Axis Japan means no American involvement over Japanese expansionism, BUT it also means the Allies wouldn't be distracted in Asia.