VII or VI.

I have played most FF spoiled, my friend always told me what happened since I had no access to play FF games but later I got chance to play these games and I was pissed sometimes.

IV was first I completed and luckily my friend never beat Magus Sisters so after that I didnt know what is going to happen.

I guess I choose VII.Although then I would search whole internet how to resurrect that girl who happened to be at same place where Sephiroth decided to put his sword.