Mmmmm...... Hard Choice, Both I like to say becasue, both are asian of course. Both have noodles, vegatables, shrimp, and soy sauce. I prefer the Japanese because They are very good to eat of their seafood like Sushi, and Dumplings to eat.
I like the American versoion of Chinese Food but I was also able to try real Chinese while I was in Korea. It was much better than some of the American Chinese. I have had Japanese food but perfre the Chinese.