If you think the Jedi and Sith are too extremes, you might be interested in Kotor2: there are several characters in it that are more "grey" and imbetween the dark and light side, in different ways. Quite a lot of dialogue with a prominent companion, Kreia, is her putting this kind of grey perspective. Overall, Kotor2 is darker in tone - kind of Empire Strikes back to Kotor1's New Hope. If I recall, the gameplay in these titles rewards you for going dark or light, though, as many powers are light or dark side only.
If you think the Jedi and Sith are too extremes, you might be interested in Kotor2: there are several characters in it that are more "grey" and imbetween the dark and light side, in different ways. Quite a lot of dialogue with a prominent companion, Kreia, is her putting this kind of grey perspective. Overall, Kotor2 is darker in tone - kind of Empire Strikes back to Kotor1's New Hope. If I recall, the gameplay in these titles rewards you for going dark or light, though, as many powers are light or dark side only.