It occurred to me that getting Industrial Planning yourself does not make much sense unless the player personally governs many colonies. That practically means Colony Management is a given if I already spent six for dead Industry aptitude plus Industrial Planning. Similarly, if I get more than Colony Management 1 for more colonies under my control, then I need to get Industry Planning myself to exploit the extra colonies most. Planetary Operations would be nice for extra colony/stability although getting that too cuts into combat power. (I had trouble deciding whether to get Officer Management, Planetary Operations, Navigation. I want them all, but there are not enough points... unless I abandon industry and grind for alphas.)
However, if alpha core administrators add to Pather interest, and the new limit to avoid active pather cells is only four, then having more colonies under human control can still be useful if player does not want to deal with Pathers. (Dealing with Pathers is a royal pain and inconvenience that I like to ignore.) Player can still have colonies on junk worlds for population centers and possibly waystations. In other words, colonies under alpha control can simply have population and few minor industries or structures, while human colonies have the Pather aggro industries like fuel production and heavy industry.
@ TaLaR: Are you sure unskilled character can hire two administrators? Isn't the baseline two colonies governed by you and one administrator? If so, that leaves one under hireling control without Colony Management. Income generation with unskilled character is unremarkable, at least not without Free Port and items.
Since TT are the only faction who won't care about saturation bombing everybody else, the choice is obvious. Question is whether global market that small would be able to sustain any player colonies.
I think Diktat does not care about sat bombing either, although they are small too.
Also, if Free Port in 0.9.1 is not a huge money maker like now, then it could be useful mostly for the population boost since it seems incentives may not scale with colony size (i.e., no more hundreds with high size colonies).
Luddic Church and Hegemony do not raid colonies that do not have Free Port, although Hegemony has the pesky inspections for core users.