For me, definitely Final Fantasy I, II and War of the Lions.
I’ve played Final Fantasy I (PlayStation & PSP versions) about seven or eight times; it never gets old. I especially like the extra content at the end of Final Fantasy I’s 20the anniversary edition (the Labyrinth of Time puzzles – and any type of puzzles in any of the Final Fantasy games for that matter).
I’ve played Final Fantasy II (PlayStation & PSP versions) about seven or eight times; just about the same amount of times as Final Fantasy I. This is mostly due to the fact that Final Fantasy II usually comes with Final Fantasy I.
I also like the extra content at the end of Final Fantasy II’s 20the anniversary edition (the Soul of Rebirth and Arcane Labyrinth, though the content’s sparse compared to Final Fantasy I).
And I’ve played Final Fantasy Tactics: War of the Lions at least five times now. One time, I concentrated on an elite five-person team consisting of Ramza, Monk, Thief, White Mage and Black Mage.
You can see I have an affinity for the old school Final Fantasy titles.
What about you?