From 1 to 9 I like and would replay when i feel like it. For example VII isn't my cup of tea, and 8 I find it a little over the top with the High schoolers and romantic triangles (Yes, even in a series with people suplexing trains and time traveling impossibilites), yet I still enioy them and find them good games even when I may like others more, but that's opinions for you, lol.
Besides, FF8 gave me Chicken-wuss, which i still quote today. It was FF8's Spoony Bard / Son of a submariner, in a sense.
But after the creator left (After completing 9), it went truly downhill for me.
I find 10 pretty bad, 10-2 it's even worse, 11 I never played so I can't comment on it, 12 is not bad but It seems more of a spin-off shoehorned into the main series (Although screw Vaan and Penelo), and the 13 trilogy is awful, even if Lightning Returns is a
little bit better than the other two, and I didn't played 14 neither, but seeing how S-E had to apologize because how bad it was the first time they tried, well...
I end up enjoying far more some of the spin offs like Crystal Chronicles, Final Fantasy Tactics or the Chocobo Dungeon I named the other day than the main titles. For example I have 0 interest in FFXV (there's just nothing for me to care), but Final Fantasy Explorers strikes me as something I may like.
And then we have all the FF7 Prequels/Sequels. Jesus Christ on a pogo stick. I know FF7 was the point of no return (Except for 9, I guess, it was designed to go back to the roots of the series), but why so many games related to 7. Even 10 and 10-2 are related to 7's universe...
The only fun I had with games like Dirge of Cerberus was with a Let's Play from LP Archive:
http://lparchive.org/Final-Fantasy-VII- ... -Cerberus/I thank the author for transforming that game into something fun, although it still ruins a lot of things from FF7.
And the FF7 remake is a whole new can of worms by itself...