Mine was FFVII, my friend bought it and I soon did the same, we kind of had a race at it but I lost because he had to borrow my Disc 3.

But anyways, my first definitely isn't my favorite

After VII, I played VI because a different friend practically worshipped it, so I opted to give it a try, and I absolutely loved it.

My favorite one out of the ones I've played and beaten
(FFI,IV,VI,VII,IX) is probably IX