I just wanted to say that the "rush to neutral" is, imo, a very valid strategy (if  a bit cheesy).
I would go so far as to say its out of balance.  Neutral is just soooo much better than the other alignments.
Here's what I do:
Build up a basic economy, colonising using the evil option everytime (completely for the cheesy bonuses).
Research my but off til I get to choose neutral (the 10bc / mo is a trival cost, no matter how many months I'm in debt - there's not even any interest paid on this debt).
Manually go through ever planet to upgrade to Neutral Learning Centers.
Watch as I fly through the tech tree to the top of defense & weapons & miniaturization and go crush all living things.
---
In fact, I just started a new game in which I'm restraining myself to not choose neutral  - to force myself to give the AI a chance of competing.  It would be a harder strategy were I to play on smaller maps where the AI is a close neighbor from the get-go.  But since I like the big maps, with lots of distances involved, I tend to have time to build up my economy adequately in order to rush to neutrality which catapults me to a win.
The thing is, Neutral Learning Centers means I'm light-years ahead of my opponents in ship tech anyway - so I have yet to play a game where Evil or Good special techs would ever matter.  I suppose if I let the computer fully research its tech trees before going to war that this would give them a possible edge - but I doubt it.
After all the other *amazing* (and again, probably unbalanced) advantage of neutral is automatic, global PQ bonus to every world due to the insta-terraform-amatic effect.  I have 18s jump to 26s overnight.  my 5s suddenly become 10s (in many cases).  In fact, I have to avoid researching any of the habitability techs because otherwise the planetary governors foolishly spend time terraforming a yellow tile rather than alerting me that more green tiles are available to build new buildings on first.
Lastly, neutrality gets the nutral trading, which is +10 to trade income, and +3 trade routes!  That's another sweet bonus, which helps with income, but more to the point helps you to stay on everyone's good side - who wants to cut off the throat that feeds them???  lol - the AIs tend to let a lot slide if you're making them $$$$ every turn.
Just my 2c
  
