Corran Horn is awesome! One of my favorites for sure. Right now my favorite is looking to be Jacen/Caedus... shocking considering my own sig and profile pic lol
I always liked Jacen, but Caedus... I felt pitty for him really. I won't ruin it for you if you haven't read the series, but Jacen becomes really misguided by the end. The only reason I can possibly feel sorry for him is because of why he's doing it. But still he becomes a monster.
I also like Kyle Katarn, and Dash Rendar and I wish they would do more with both of these two.