A lot of things are confused by the use of the term armor. Ie, to me, armor just means a means of protection - whether it's fabric armor tech or blatant armor like in TDK, that's all good. But it still needs to look substantial and not just like straight spandex, IMO. When some hear armor, they think only of TDK or arkham style armor, while others hear fabric and think spandex. It's an immediately negative and polarized set of viewpoints, of which I fall in the middle.
Some have argued that batman needs no armor simply because he's Batman and he doesn't need it, but I very much disagree with that. As a means of characterization, Bruce would never go out onto the streets completely vulnerable - it completely flies in the face of the characters pragmatism and need to plan everything out meticulously, making sure he has a contingency for everything.
So for me, batman needs armor - but not necessarily blatant or bulky armor, a fabric tech armor works just fine, logistically. And I suspect well get something like that in BvS.