Question for my fellow dark siders who may have dipped their toes in the light side

Filthy light siders can answer this too ;P

Essentially, I've come back to the game and intend to try to see every single class storyline through this go around. I'm about to finish the Imperial Agent, but that still leaves 7 more classes to play through.

I've always played mostly by the Dark Side Alignment, choosing dark side options more often than not, only choosing light side when the dark side option was impractical and stupid ontop of being selfish and evil.

That said, what would people say is the BEST class storyline to play as a goody two shoes light side aligned person?