Probably cause most people like too many games in the series to say which is the best. I know that's my issue at least.
X, I voted awhile back and even made a post but decided to remove it. The most bland game in the series which borrows from VII and the Tale of the Yamato no Orochi but fails to bring anything new and exciting to it. Unless you count thetwist about Tidus and Dream Zanarkand. Interesting battle system dumbed down to the level of single cell organisms. At least II and VIII's systems were fun even if for awhile. Easily my most disappointing FF which only redeeming value is that it showed Square could do decent VA work. Beyond that, despite being the newer game in the series, it lags behind in innovation from gameplay to storytelling to music from every other FF in the series. Even its poorly made sequel has more redeeming qualities. :rolleyes2