IX's my personal favorite, right up there with the original Tactics.
I must admit, I wasn't overly fond of the character designs, except on the cases of Garnet, Zidane and Vivi, but the rest of the game was wonderful. The story was one of the best, the characters were developed very well (in spite of their strange deisgn) the music is some of Uematsu's finest and the ending is my favorite from any Final Fantasy game, ever. The battle sytem was a touch tired, but it did a good job of incorporating elements from several Final Fantasy's past.
I liked it quite a bit.
