I haven't played any FF in a while (plan on changing that once I beat the rest of Crystalis), but currently, its FFVIII. I know a lot of people prefer IV, VI, VII, and the like, but when I was a real little kid, VIII was my brother's favorite, and he played it with me, so it has a lot of sentimental value.

I really enjoyed the world it took place in as well, along with the soundtrack, as weird as some of the tracks could be.