We don't know about the rest of the galaxy but in our corner of the Milky Way we have:
Mercury - barren
Venus - toxic
Earth - habitable
Mars - barren/toxic
Jupiter - gas giant
Saturn - gas giant
Uranus - gas giant
Neptune - gas giant
Pluto - minor planet (category 3) barren
If you want to include the hundreds of moons, Titan is toxic and all the rest seem to be barren or ice.
In GCIII there are at least 4x as many toxic and radioactive (there is bound to be a radioactive planet somewhere in the galaxy) as there are water, ice and barren combined. If they mean cosmic rays when they say radioactive, all barren planets are also radioactive, I suppose, but somehow I think they mean radioactive in a different sense than cosmic rays. 
Oh well, I am just feeling a bit put out about the abundance of high PQ toxic and radioactive that are "occasionally" popping up in my game. 