KotOR was a good game, but the story was less thean perfect. The so called twist was broadcasted miles away and was no great surprise. There was no real difference in gameplay that was down in Neverwinter Nights and they was no real choice in your path. After all, you are forced to play a force user.
Haven't played KotOR 2 and I doubt that I will. They took the weaknesses in KotOR, easy gameplay, unchalenging enemies, and rampant leveling and increased it twofold. They have made the game even worse in terms of game balance and challenge. Bottomline, easy games are not fun. So I doubt KotOR 2 will be better than KotOR 1, in fact I expect it to be much much worse.