Towers, yes, civic centres, not really (and that's what this patch is about).
And I would weigh the health/capture points of a building a bit stronger than its attack damage because (especially on large maps) it gives you more time to send rescuing troops that would otherwise be too late.
It depends; in some situations health is indeed more desirable, though in others (e.g. towers on hot borders) I'd favour attack damage.
Anyway, I'm not opposed to technologies increasing civic centre health, however, I think that should be considered separately from these technologies, i.e. something for another patch.
I was merely talking about relative strength of phase III upgraded CCs and phase I unupgraded CCs.
Yes; this patch mostly affects ungarrisoned civic centres; for fully garrisoned centres these technologies hardly make a difference.