12, despite it's flaws. It's just so much in Ivalice to explore, alot of lore(bestiary was the best I've seen in the entire series), great side-quests/hunts, and no-screen freezes/real-time combat. Most of the flaws it had was fixed in the International version, just need an HD remaster of it in English.

The whole main story was mediocre, I will admit though. But I actually thought it was pretty decent IMO up till Vossler's death, and then it just fell apart. It's an unfinished masterpiece, but I can still appreciate it regardless.