AC was enjoyable aside from Cloud's moodiness. I can't wait till I can get Complete.
But, so far, the biggest thing I enjoy about VII is the music. Nobuo Uematsu outdid himself on VII's soundtrack. The story for VII is really quite awesome, when I first played the game, I didn't know what was going on, but I still liked it.
I, really grew up with X, so I appreciate it better by default, but by itself, X was great. VII, is the same, if I grew up with VII (and I could have) it would probably have been my favorite.