I feel like I'm in the minority as my favorite Final Fantasy game is FFV. It was well-written, it didn't take itself too seriously, and a ton of the characters were memorable. It also expanded on the idea that every Final Fantasy game takes place in another universe connected by the Interdimensional Rift, which laid the foundation for the appearance of certain Final Fantasy characters (Gilgamesh, Shinryu, Omega, Ultros, Typhon, Pupu, and others) in other games within the franchise, and was also the explanation for how the Dissidia games existed.

I'm a really big fan of FFV and I hope to see a lot more of FFV in FFXIV, especially Shinryu, Omega, and the possibility of an Interdimensional Rift dungeon/raid with a final showdown against the necromancer Enuo.