Yeah, FFVI is the best for me too, you said it was linear, and that can only be said about the first half of the game, in the second half, you can do whatever you want, you can even try to beat kefka with 4 allies.
An i love this retrospectives, i loved the zelda one, but i dont know why, but i think they're going to put too much attention to FFVII because it was the most popular (and not even close to the best imo).







