I've been thinking: how does a person personally define something is the greatest movie/show/book/song/whatever ever? I know these things are inherently subjective things and everyone is going to have a different opinion on it.
Obviously everyone has their own personal tastes on what they exactly want but I don't know if quality is something that should be approached psychologically or sociologically because a part of me want to generate something worthwhile, you know. So, tell me bronies, how do you define "the greatest?"