Late to the party, but I indeed agree that FFX is objectively the best in the series.

The world feels alive and humane in dealing with Sin. It's themes are well executed and relate to similar situations in our own world; corrupt religions, indoctrination, racism, mankind and it's use of technology - all are well thought out and explored in the game.

I could talk hours about the fantastic character development, but most of it has already been covered in this thread.


But there is one thing why X truly stands out above the rest: not a single aspect of the adventure feels like filler. It's a tight package; everything - from props to dialogue - is placed with care and really matters to the player and to the world. And that's something I really can't say about other fan favorites like VII, IX, XII. As for IV, I see why it is great, but there are also many game-design flaws that make it inferior to X.