Planet quality?
Is there any info I should be looking at to know what a planet will excel at? Outside of bonus tiles I've noticed that I have say, 2 class 4 planets and build the same exact structures on them, and we'll assume that neither has bonus tiles. Now, one ends up with 40 military production and another has 26, both receiving their social production bonus.
Obviously that one getting 40 production is/was better off at being a production planet. The other one? I don't know, could it excelled at something differently? Like trade or research? Only reason I bring this up is because it'd help to know where to look to be maximizing each planets potential.