On a scale of 1 to 10, 1 being "pure, unadulterated crap" (let's say, ohhhh, FF II), and 10 being "if God were a game developer, this is the game God would make" (let's say, yes, FF VI), then FFV is a 9.99.

It is very tough to decide between VI and V for me. If you're into the whole characters/story thing, VI is better (which isn't to say the characters and story of V are bad). If you're into customizing your characters, having infinite replayability, and having more of a challenge, V is better.