Wow, it's so rare to find people who like IX a lot, and yet there were several in this thread! IX is my favorite, but I really like X a lot too. And Seymour is I think one of the most messed up villains I've ever seen... X-2 is okay... I found the most entertaining part being the fighting/ability system, I really like systems like that(I like being a perfectionist). The story is very lacking, on all accounts. But honestly, I'm pretty sure that game is down to like 10$ now, so it's probably worth it in that aspect.
VII was okay, I liked it, but wasn't crazy about it the way a lot of people seem to be.

I'm midway through VI, I really excited to finish it.