Not to be rude... but if you were to clarify that your game is NTSC, or from America... that will help out with the cover making. Why would you want a Japanese cover for an American game?
I don't know... any region. The one that you think is the bests.
It's not what we think is the best, its what region you want your cover to be in. American covers are completely different than European (wording will be completely different in some cases), and Japanese... well if you want kanji, then it would be best if you stated what region your game is from
