[brianeyci]

The larger the planet the better.

Gas Giant is the way to go. With advance storage, you get 30 space on a huge gas giant planet. I haven't played PBW much and have only completed a couple games so far. But it seems that with the bonus percentage facilities, concentrating your facilities is a good idea.

Also less planets means easier defense.

Gas Giant is possibly a bad idea on small maps. With one game with a small map, I haven't been able to find many suitable planets.

In my KOTH game, I played rock/none. Besides morally justifying population dumping, every small moon becomes a tiny breathable planet.

<edit> I guess it depends on playing style. I like to fill one planet with one type of facility. Less hassle </edit>

Brian