With all that said, Bioware created an extremely believable universe with very interesting backstory and politics which is an impressive feat. I found myself reading all that codex stuff and really enjoying it. Because of all that and the story I am engrossed in the universe more than almost any game. Since it was set as a trilogy, I really expect to visit the big alien homeworlds in the next two games which should be epic. The Asari, Krogans and Quarians are all probably the most interesting and creative alien races I have seen in any videogame. If Bioware hadn't created such a great universe, the game would have been a lot less impressive to me. Mass Effect is a huge step up from KOTOR. Now that they've completed the basics, I really look forward to a bigger game in the next 2 with more of the universe opened up. Even though I'd probably rate Mario and Bioshock higher than this, I still think I like this game better if that makes any sense. I think it's because of the Mass Effect universe again.
Thanks to Blacksaber for the sig!