hav sed this before, will say it again
rpgs are about the story and the characters and the game mechanics
in kotor all these elements were present to a high degree of quality, some pretty good graphics added to the ingame experience.
in tsl the story, in my opinion, sounds better, we know the character development is going to be superior by far, and as for the game mechanics they worked extremely well in kotor so changing them, even if they were 'better' for the change, would ruin the feel of the new game. graphics will stay the same, and they are competent graphics, not exceptional but competent, since all the other ares of tsl seem to be superlative the fact that graphics are not exceptional does not matter. this is the case with all of best rpgs
sorry for the ramble evry1!