I thoroughly disagree with the "originality" statement. People don't need originality as much as they need quality. Tell the oldest story in the world in the best way possible and you will still catch peoples attention every time. The trouble is that they all try and be the same one game and do it really badly. You are right in that stories need to branch out and have their own flavor. But nobodies going to complain about pickup up a holy sword and slaying the resurrected demon of darkness if every step along the way is a 100kg barbell of awesome. I honestly think some games fail because they try to be "original" .. and just end up being boring. I'm not dissing originality. I just think that sometimes we put it on a pedestal. No one wants to listen to your amazing new trope defying idea if the reason no one has ever done it before was because it was dull as dishwater.