FFVII is winning, and rightfully so. The game was evolutionary, no matter how cheesey the gameplay or bad the translation. Its like Jurassic Park, not the best movie anymore considering what can be done, but it revolutionize the filmmaking industry.
Materia was the best way they planned out all their spells and abilites so far in my opinion. I actually hate the way of taking the ability from the boss in the battle, its so gay!
The Super Bosses were extremely challenging, and getting to Lvl 99 was actually pretty damn difficult. Knights of the Round. What else do I have to say other than there is NO WAY ANYONE could have figured that shit out by themselves and without looking in a strategy guide or walkthrough on the internet. If you did, I give you mad props!
Anyway, 8 sucked, too easy, and ending was way too easy. 9 was a lot better than 8 because they actually got back to the "Fantasy" portion of the series (Characters wise). And 10 was pretty decent considering the graphic and sound qualities. 7 is definitely the best so far though, bar none!