I'm on my second go. This time, I'm going neutral-ish, and then I'll go to Dark Side at a... certain point.
I'm not sure what you mean about specialization being a no-no. In my last go, Master Critical Strike was essential. And in this game, I'm going with Master two-weapon fighting, Master Flurry, and Master Speed. Now that is some fast lightsabers a-whirling!