Actually the release version would crash every half our or so for me, whenever anything had to load it would take absurd amounts of time (still does, but less, thank god) and the graphics would spaz out every so often, the interface might have been done but still looks like crap, there had been absolutely no balancing done, policies, units, buildings and civs and the biggest map I could play without making the game unplayable due to wait times was standard.
I call that broken. Not sure about your Sword of the Stars thing but I've never played a game this buggy on release, and if it was even close to that it was generally fixable by scouring the internet for a bit and messing around with some .ini file or patch.
I can't find any documentation about SC1 or W3 but I know for a fact that the AI in SC2 only cheats on brutal, the highest difficulty, in contrast to CiV, where it even cheats on the lowest, if you can't provide any proof to back up your claim I'm going to disregard it as a boerish bluff.
There have been games I've played where I've known of this, HoMM for instance, the difference here being that the AI was pretty good to begin with so it knew how to make use of the extra resources in combat.