New Version of the Map Analyser (
http://imagemodserver.mine.nu/other/...E4mapstats.rar )
I'm not sure if the previous Version had the 4th pie graph mode, but this one does, and fixes a bug with vaccuum/gas/tiny planet stats.
"Common Max" is a very handy mode, and lets you compare different surface types effectively.
It sets 360 degrees to be the maximum of all three surface types, so surface types that have lower scores than the others will have a black slice of pie taken out.
As you can see here, in stock, the Gas Giant races have only half the potential planetary construction rate that Rock races do.
And Ice is only about 120% of Gas and 60% of the Rock rate.