So if Tidus and Jecht are just dreams of the fayth, and at the end of the game when the fayth stop dreaming, Tidus goes POOF, then why oh why didn't the fayth just stop dreaming once Jecht became Sin? Then he's go poof, and Sin along with him, riiiight? ...I bet there's some convoluted answer, like once Jecht became Sin he became real and part of Spira. *rolls eyes* Whatever. At least this doesn't have nearly as many plot holes as FFVIII. *goes back to playing*
EDIT: Oh Tidus. C'mon now. I just used your Energy Rain overdrive, and you say Slice and Dice before you perform it? The fayth forgot to dream you a brain, didn't they? *siiiiigh*