I have played FF 7, 8, 9, 10, x-2 and 12.
Final Fantasy 7(PS1): My second favorite FF game. I have finished it five to ten times. The story is good I liked it, but I have to say that I don't like Cloud! I have also killed the most powerful enemies like the water and sand weapon. While I was playing this game I was 11-15 year old.
Final Fantasy 8(PS1): My third favorite FF game. I have finished it two times. I have killed the most powerful enemies: ultima weapon and omege weapon. The story in this game is little confuse, but very good at least in my opinion. While I was playing this game I was 11-15 year old.
Final Fantasy 9(PS1): My favorite FF game. I have finished it four to eight time. I have killed the most powerful enemy: Ozmo. The story in this game is very good! While I was playing this game I was 11-15 year old.
Final Fantasy 10(PS2): My fourth favorite FF game. I have finished two times. I have not killed the most powerful enemies. But the story was fine. While I was playing this game I was 16 year old.
Final Fantasy x-2(PS2): My sixth favorite FF game. I have almost finished it. I stopped playing it because I died first time at the final place and then I have not tried. Well the story is okay, but I think the game itself is not so good. I don't like to play with three girls, I want more characters(don't think I'm gay!). While I was playing this game I was 16 year old.
Final Fantasy 12(PS2): My fiveth favorite FF game. I have not finished it yet, because I'm still playing it. The story is not good and the battle are really different. The battles are good, but I think they not like FF style.
In my opinion, FF games are awesome! I really like them.