It's pretty clear who the hero is

First, Superman!

HOT #BatmanvSuperman #Promo #Art #Superman A photo posted by Heroic Hollywood (@heroichollywood) on Jun 10, 2015 at 10:48am PDT

Obviously, given the first synopsis revealed by Warner Bros, it is expected for him to be considered villainous by the rest of the world. False God, a Bat symbol on the S, and even the statement that Lex Luthor is the true savior of the city. Then Batman!

HOT #BatmanvSuperman #Promo #Art #Batman

A photo posted by Heroic Hollywood (@heroichollywood) on Jun 10, 2015 at 10:48am PDT

It is pretty clear that Batman, despite being hunted by the police, is still the hero, the Dark Protector (as this Batman v Superman promo banner says).

Oh yeah, Batman is also an angel (although we don't know how that works).

Of course, we can expect that in Batman v Superman the Man of Steel will also have some supporters. But not as many as the Dark Knight.