I love FF7, 8, X, and X-2.
FF7 - It's Cloud, what more i can say? xD I love the story and the gameplay, it's the 1st RPG game i had ever played and it made me fall in love in RPG games.
FF8 - I love the story in this FF, the love story. Awwww
FFX - The 1st FF game that has the best battle systems. The story is touching and great too.
FFX-2 - I loved the way Square-Enix continue FFX's story, and it sure wasn't disappointing. And i love fast paced battle systems for RPG games.
Well, that's the gist of it. I don't really like FFXII because of it's gameplay and story. The story is the weakest i had ever seen in a FF game, the gameplay is a nice change, but it sure doesn't suits me. Why the hell i am suppose to wait till the bar fills up b4 i can attack? -.-
I personally can't wait for FFXIII and FFVersusXIII. Esp FFXIII, it's gonna pawn all next-gen RPGS.