I have played all the main series 1-14, X-2, XIII-2, the DS game of XII, Dirge of Cerberus, and Tactics. I was never able to play FF Legends or FF Mystic Quest, none of the other versions of tactics, and I still have not played Crisis Core. I love single player RPG games, so the mmo versions I play just for the story and not to play endgame.

My top 5, in order, are FFV, FFIV & FFVI (tied), FFVII, and FFIX. Honorable mention to FFVIII and FFX.