(This is all in my opinion by the way...)
1. Duh, it's first, and very good for it's time.
2. Pale imitation storyline of above, only innovative new system.
3. Didnt play enough of it to accurately rate it.
4. Too many deaths, but otherwise interesting.
Mystic Quest. Something so different it shouldn't even be in the same series.
5. It was a well done FF.
6. Look at #5 but slightly better
7. Incredible work, and also very good for it's time (and still)
Tactics. See mystic quest
Tactics Advance. Very Crappy sequel
8. This is where it started going downhill to the point of graphics > difficulty.
9. See #8, but the storyline and difficulty improved a little.
10. This is Squaresoft's worst FF to date
11. Even though this should be called FF:Online instead of FFXI, it is truly the best in the series. (but its $12.95 a month X_X) This was the first FF with no random battles, and it was done quite well.
X-2. See #10
12. As long as it isnt X or X-2, I'm happy
[This was edited several times]