Final Fantasy VII would be my choice.
With all the Final Fantasy games being unique in their own way, and always a challenge as well as great storyline, it is not easy to pick one, but if I was forced to, I would have to choose FFVII because of several reasons. First, it was the first of the Final Fantasy series that was created for PlayStation, as well as the first to be ported for Windows. In addition, it was the first of the series to have 3D characters, not to mention, it was a step-up in technology for the game, with more futuristic settings . To me, it was a cornerstone for bigger and better things to come. So my choice, Final Fantasy VII.
I know, I can't enter, but what the hell.
F F V I I
The one thing I didn't like
Got killed on disc one