Hmmm...Well, I own nearly all of the Final Fantasy series, save XII (very soon...) and a couple that are outside of the numerical series (though I own most of those, too.) and my favorites would still have to be VIII and IX. I liked the storylines best of all, as well as the characters. Plus, the GF system in VIII was so much fun! Not to mention it was my first Final Fantasy game ever. ^ ^ My least favorite game in the numbers is probably X, and outside of the actual series, it would be Tactics. My favorite out side of the actual series may be Mystic Quest for the SNES, though a lot of people seem to dislike it.