I started at 7 and looked forwards to every iteration of the series since then, 8 was more of the same with a weird story, 9 was cute and a good throwback, then I went back to 6 which was a masterpiece, 10 was emotional and beautiful, 12 wasn’t great but had cool worldbuilding, being a FFT fan.
Here is when it starts to diverge a little. I would call this the start of ‘modern’ FFs
I actually liked 13’s battle system, it worked out many of the kinks of old systems, like healing after each battle and focused on each interaction as a puzzle to be solved. The story was OK and then the sequels kinda tried to do something different. Lightning Returns had terrible reviews, possible due to the time limit, which is why I never tried it
14 had a bad start and did a reboot to become a well loved MMO, but starting in the first world is such a chore with outdated MMO mechanics as someone who started later
15 was ambitious and unfinished. the first time I was truly disappointed in a FF game.
Then, we have the FF7 remakes, which are amazing, it seems that all the effort, the team members who have passion all signed up for this and it shows, but there’s a strong nostalgia bias to it.
Now reading the reviews for 16, it seems there’s no real reason to give it a try. At this point, I’m not sure what comes after the final FF7 game, is there a way to make 17 something people would care about?
X is around the time FF lost it’s main architect, Sakaguchi (technically sooner , but dev times I imagine it overlapped). Guys a class act that was with them since the beginning, but he started his own company after a falling out with the direction SE brass wanted to take things. He was the one pushing to always have life and death as main themes and kept certain other producers in line.
I always recall an anecdote on FF7, as him, Kitase and Nomura were working out story. Sakaguchi required a meaningful death in the plot. Kitase (who we can thank for FF6s second half) suggested the whole cast die except one who the player chooses. Nomura talked them down from that. FF7 was his baby (so much so that he’s the character designer and artist), hence why he’s so present on the remake. That said, they kept each other in check and Nomura gets really weird ideas (KHs being his lead, for example).
After Sakaguchi departure, 11 was modeled after EverQuest and had a newish team, 12 was written most by FFT scenario team but had a change mid devolpment midway (the SE brass wanted a plucky young protag, Vaan was late development), 13 was so overbudget that they had to make sequels to recoup costs, 14 1.0 was mostly old guard 11 people with no idea about optimization, 14 2.0 was Yoshida learning from WoW success (flaws and all) but adding “FF theme park” plus a great writing staff, 15… similar to 12 in changes mid production, but iirc it was the SE brass shoehorning bad ideas and plot required DLC, and 16 is Yoshida and his core team making a pretty solid ARPG but with some tedium due to his MMO roots (and if you like 7R you’d probably be ok with 16).
Anyone can like or dislike a game, so I’m just giving you the long range of production issues that are objectively damaging the experience. It’s ok to like flawed games. I know an unhealthy amount of video game industry lore, and the biggest thing I can’t even say because of an NDA. lol
(Bonus fun fact, FF6 was meant to end at the halfway point but was so ahead of schedule and funds they went ahead and created the second half. It’s my favorite FF lol)