TSL was way better for me :
First off the Onderon Sky ramp was superb, really made you feel like a powerful Jedi Knight, and the music score was excellent.
Also the Tomb of Fredon Nadd, wow, thats what a Sith Tomb should be like!. i wasn't a fan of Kotor 1 tombs, but now i am sold. And once again great music score for that area.
The Jedi sub-level enclave was great aswell, to see the Jedi halls nice. It also had a great atmosphere about it, the music helped alot.
Really enjoyed the Ravenger and Malachor VI, Traya's Palace was beautiful.
Finally i would like to say that i really enjoyed the ending, unlike alot of others. Traya's conversation was good. Her prediction of the future answered all my questions. It was nice that i could keep asking her the questions, just to make sure i understood all of it.
Only one thing i would change: i would have liked to have fought Nihilus (sp?) on my own. I fealt a bit dirty using a trio on him, but that was made up for when i solo fought Sion and Traya
big thanks OE and kudos to the music writier, that scores were fit for the big screen, nevermind a crpg!
Adan