I saw one comment that decribed the Vasari as tough but fewer and expensive; the advent as buffers/debuffers with shields (ie vasari can bypass em) and the TEX as a jack of all trades, economy focused.
That gives me some sense of the difference... but I would love it if someone could direct me to a really good thread or website which explains the strength and weakness of each faction - and what that means for strategy/tactics.
Thanks!