Most like KotOR - Knight and Sith Warrior
Best Story - Warrior and Agent
Ease of play - any of them if you learn your abilities, use interupts and use CC's.
Best lines and funniest - Female Smuggler.
I bad mouth the trooper on the forum, but really it was a decent story and great dps when I actually learn to play the class. Just I leveled with Lynk and if I would have followed a set rotation, everything would be dead before my 3rd move.
My rank for stories
1. LS Sith Warrior (the one class I will play again for story)
3. Smuggler (really good lines and would be higher, but it is not as epic as the others)
3. Jedi Knight
5. Jedi Consular (not a bad story, but again not epic and it is missing the funny lines of the smuggler. However it is not terrible, it is the only class so far that I am playing the story for a second time, but not for the story, I want a Sage to go with my shadow.)
Haven't gotten far in the other two imps yet.