You've brought up an interesting point... In one game both my neighbors have rock/none
I wouldn't be willing to give up the moon advantage, so no gas for me. I've been considering going ice/none. Only problem is I'm not sure how common ice planets/moons are. In every game I play I have the odd feeling that for whatever reason there aren't enough planets of my type
In case you're reading this Deathstalker, how lucky have you been finding ice/none planets or moons?
If only I could find that one tabe (which I foolishly did not link) which had a full listing of the ratios of get rock/gas/ice planets and the various atmospheres you would be likely to see in a game...