FFCC, in the spirit of the Mana series, I'd say has the most dumbed-down gameplay in the series. Where'd all the nice magic and special attacks and attack style variety go? Where's my class changes?! Where's the overworld?
I still had loads of fun with 2-players, tho. But I still yearned for more, umm, complexity and depth.
And graphically, FFCC's had a better 3D engine than any PS2 FF (and Kingdom Hearts) game. Sharper textures, more detailed modeling, much more detailed scenery (I like Alfitaria), boob physics, no "shaky" idly-standing characters, and a reliable 30fps framerate in gameplay and cutscenes. The problem is the "oldskool" isometric view/presentation makes it difficult to acknowledge the quality of the graphics at first glance. It requires a closer look.