I love Final Fantasy too
FFVII is something out of this world. The music, characters, storyline- it's so unique and unprecedented for it's time, and you can still play it now and be swept away by it's profundity and vision. All the characters- Aeris, Cloud, Tifa, Red XIII, Vincent, Barrett, Yuffie, Cid, Sephiroth, Bugenhagen etc - such heartwarming memories of playing that game, I could still play it again and again if I had the time.
The only thing inferior of FFVII to the other FF games are the graphics, but when you play it for hours and hours, you become used to it and it doesn't affect the level of enjoyment! Besides, the clips that play throughout are pretty good quality. If you haven't played it, I strongly recommend it because you will love it! I can't stress how great FFVII is, it's my favourite console game i've ever played!
Also played 8, 10 and part of 13. 8 is pretty good, a really great game too with interesting characters and a compelling plot, and much better graphics. And 10 is probably my second favourite, it's surely the second most popular after 7. The gameplay is probably the best, it's quicker and more thrilling, also about a group of people saving the world with a lot of depth to it.