Planescape Torment, best rpg EVAR!
Powerful, philosophical story, deep supporting characters(dakkon is a god, one scene with morte made me cry), expert voice acting, a dynamic storyline, combat is enjoyable but doesn't bog down progressing through the story. Adding the ability to run to the infinity engine means you can avoid almost any fight you don't want to participate in. Alignment matters, and the most important stat in the game is wisdom, not strength, because conversations move the plot forward more than hammer swinging.