I've seen bits and pieces of five of the eight classes and am pretty impressed with how the class quests are tied together, and how they're different depending on your choices. I do wonder if these can be more varied though, or can be tied in to quests that aren't strictly class. The light/dark options are cool but could there be more options? A light V character might have a different outcome than a light II character for example. Or maybe a character's words & tone changes based on alignment scale. You might even be able to set some battle mechanics as a function of alignment. I don't want to give spoilers but, I would say that having more subtle story lines, more of what I think was psychological game-play, and just more consequences for not just pivotal class quest choices but one's choices taken more as a whole would really make the game that much more interesting. While I can't speak for other gamers, being as I'm only casual and this is my 1st MMO, I do greatly enjoy the complex narrative that SWTOR can offer.

Indeed, the legacy system makes it more interesting. In fact, the two characters on the different sides don't need to be enemies, though they can if you want. Luke Skywalker was a Republic hero, who's father was a Sith Lord; did that make him a traitor?