What is your preference for starting planet? Gas or rock? (Ice is few in number and therefore out of question... at least, that's my opinion)
I have been discussing this for a while with a friend of mine, and we can't agree on this dilemma. I prefer gas planets because they are largest and therefore offer more room for your different facilities in fewer starsystems.
My friend always chooses rock planets, because they are more numerous and that gives a larger probability for a breathably atmosphere.
Ofcourse later in the game you can terraform your planets to fit your populations requirements, but thats not an option in the beginning of the game, where expansion is vital for your future.
So what do you do? Let my "hear" your opinions on this and your reasons.
(Sorry if my english isn't perfect, but I live in Denmark, so it's not my native language

)