I think KOTOR is one of the two Xbox games I've actually completed (Halo being the other). I really enjoyed it. Being someone who was used to Japanese RPGs, it was quite a breath of fresh air to play something that differed quite substantially from Final Fantasy. I loved the high levels of customisation that let you really shape the game yourself. Things such as your force affiliation, the order you played the game in and the skills you chose to use were really quite welcome features and helped the game have more replay value than most RPGs. Never played KOTORII, but given the chance I think I would.