Uhh, FF 13's plot was pretty obvious from the beginning. I mean, Snow only blurted out 3 or 4 times soon as they wake up as L'Cie on Lake Bresha.

No idea why people think 7 is so amazing. It's a carbon copy of FF6. Don't believe me?

Here's 6's plot, with 7's in parenthesis.

An evil empire (corporation) is draining life energy from espers (mako) and making genetic super soldiers through magitek augmentation (the Jenova Project).

The first subject to undertake magitek augmentation (get infused with Jenova cells) is the game's ultimate villain, Kefka (Spehiroth). Kefka (Sephiroth) becomes a general in Emporer Gestahl's (President Shinra's) army and eventually kills his master.

The heroes, the Returners (Avalanche), include a girl with a mysterious mystical background name Terra (Aeris), and former Imperial (Corporate) soldier, Celes (Cloud). Despite the Returners efforts, Kefka (Sephiroth) kills General Leo (Aeris) and destroys the world (summons a meteor meant to destroy the world.) Finally, Kefka (Sephiroth) is confronted, turns into an angel-like being and is destroyed by the heroes.

So our protagonist, who is a mysterious clone, chases a black caped clone around, in a cloned story line, of FF6.