[Lemmy]

GalCiv, on the other hand, does not have that potential. Its units are static, noncustomizable.

I beg to differ, units are indeed customizable, through your actions in game, by customizing your civ, by researching specific technologies, by conquering military resources.
A peaceloving race will have much weaker units then a warlike race, even with the same units.
You can build starbases to enhance your units or increase production in a sector.
There are plenty of critical decisions in GalCiv, and unlike in other games, these decisions can come back to haunt you on the long term....*looks at the time*....gotta go now...maybe more later.