The distilled wisdom is neutral is best, most powerful. The neutrality learning centers and pq bonus r fantastic, with other extras on top, neutral is the way to go.
I would say evil is second best, with the excellent offensive weapons in a game that rewards 1st strike (may change in 1.2). Also u benefit early game by making all them evil moral choices.
Good is the worst. Its hard to be good and GC 2 lets u know this in no uncertain terms. The galaxy is stacked against u, planetary penaltys for choosing the good way, defensive bonuses in combat which rewards attack. Yep, in GC 2 no good deed goes unpenalised. Good sucks big time, no wonder those Altarians r so pissed with the galaxy and the torians r smoking something strange and the Iconians regret going good so much they just sit there and wait for someone to put them out of there misery (takes all the fun out of it for us drengins).