So why is FF VI concidered the best? And why do you concider it the best?

[Sunny Rabbiera]

it seems that almost all FF sites I view reguard FF VI as the best, heck even I think that FF VI the peak of the series. but why is this so?
why does FF VI stand out so much in a world ruled by its follow ups like FF VII and X?
I mean the game does have "flaws" that most dont like, such as not having a main character.
and its plot isnt entirelly original when you look at it, well at least not until the world of Ruin.
and most of the characters dont have a lot of background to them...

so what does make this game stand out?
is it because it is the last of the "classic" 2D FF games
or is it something more?

and do note that this is coming from a fan of this game, but I do think they are good questions