With "The Force unleashed" my understanding is that, while the games are similar, the Wii's limitations do result in significant differences between the games. There are certain control aspects that had to be removed, areas of the game the appear to have been entirely scrapped and reworked, and obviously the graphics needed to be slashed remarkably. Unless you are really excited about using the Wii's motion control scheme, which based on reviews, do seem to be well done for once, I'd go with the 360 version.