I prefer the US box art.
The bloody Umbrella symbol with a wekser thats giving that liquid medal terminator look. It has a bit of, "This game will kick your ass" look to it.
The Japanese one is more fluffy a nice. Kinda like its showcasing all its charecters from an anime and the bad guy just so happens to be the bad guy.
The japanese version should be called; "Biohazard: Wesker must DIE!"
I wonder if the one liners are just as corny.