I use 50% happiness and usually go with temporal tech. Not only do you get the faster build rate, the vacation service facility has double the effect of the other +happiness facilities.
I pick 81% env resistance. 5% drops you 2% in pop growth, independant of anything else, contrary to common sense. Also, the cutoff is at the 0/1 and 5/6 points, so if you round things off, you hurt yourself more.
With the points from env. resistance, I set reproduction higher. I get enough to set reproduction to 110%, gaining a +6% total, and get 225 pts for free. If you don't need a higher growth rate, it's a great bargain.
Advanced storage. I can't imagine not playing with it anymore. It TOTALLY blows away increasing my individual resource productions, because those bonuses are summed with population and happiness bonuses before being multiplied with your production. Adding 20% more facilities? That's a boost to your base production - all other modifiers also affect the +20% fully without getting a reduced value. PLUS you can siphon off population from your homeworld early without dropping below 2000K, and losing your 10% population bonus. Another major plus.
I wouldn't dream of playing emotionless. 3000 points?!?!? Build some pacification facilities if you have problems, the tech is super cheap. Plus, you ensure you'll never get the +20% bonus from a jubilant pop. If you are getting your butt kicked and your pop is upset, would you be better off spending 3000 points on making sure they don't care, or 3000 points on making sure you'll be doing the butt-kicking?
Giving construction a boost is also nice. With temporal and a nice bonus, a huge planet can build more than 10K per turn worth of stuff. Even more important with emergency build going to be set at 150% in the future.
-Drake
[edit]
hmm, I can't add. 10% from repoduction rate minus 3% from 15-19 point drop in environmental resistance = 7%, not 6% growth rate increase. All those years of college put to good use!
[This message has been edited by Drake (edited 10 February 2001).]