Neither had the expeditionary capabilities to harm the other, so it would have just been a paper war with little fire being exchanged. Japan would have run out of oil before Germany would have run out of rubber.
Stalemate- the Japanese had a better navy- battleships carriers name it. They could easily have landed troops on German soil who then would have been exterminated by the Germans The germans would have had a difficulty with a counter invasion.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.