Depends on what the game aims for. If it's deep, if it wants me to be immersed in the story and empathize with the characters, they should give it realistic armor. If it's 'just a game', I don't mind my eye candy =)
As for the breastplate, wasn't there a video of an armor expert talking about how non-functional that it, how that will make it so much easier to get you killed? =p
As for the breastplate, wasn't there a video of an armor expert talking about how non-functional that it, how that will make it so much easier to get you killed? =p