Seeing how I'm an avid fan of FF I'll list my top games.
1. Final Fantasy XII. Loved it through and through, and I especially loved the overall freedom, scope, and intricate storyline this game had, and the motif of the separation of church and state, the will of the people, nationalism and imperialism make this game one of my most treasured. Hate all you want, but I really like the different method of gameplay and the different direction of character development this game had. Basch was intended to be the main character, and the story revolves mostly around him and Ashe, so I often think of him as the protagonist.
Turn 18, replay the game. Take some notes. Reflect.
2. Final Fantasy X. Music, story, characters, this game had it all, and is the most likely candidate for a movie.
3. Final Fantasy Tactics. Damn...this game is hard, but the story shakes the foundation of the truthfullness of government, the church, and who truly is working for the will of the people, rather than for selfish gain. In addition, the game is extremely expansive, and can take up 100s of hours depending on how you play.
4. Final Fantasy VI. The characters and music were the main selling point of this masterpiece. While the story was good and the settings had their own flare, Uematsu breathed life into this game, and the characters followed suit.
5. Final Fantasy IX, this FF is probably the only to have actually have made me laugh. The unique characters, the whimsical feeling of the towns/cities, and the balance between exploration and hallway roaming make this the bottom, while definitely not the worst, Final fantasy on my Top 5.
As for least favorite? Final Fantasy 8. The junction system killed the battle system, the ooey gooey lovey dovey angsty wangsty plotline made this seem like a daytime soap opera with guns on crack. In addition, I fail to see how a Jet Li wannabe and a daisy-picking whip-lasher graduated above someone as kickass as Seifer. Albeit that, FF8 wins for most epic intro.