FFV has the best battle system of any game in the series. That said, I still enjoyed VI's battle system, and since I like to have a good story and characters, and some actual development in those aspects along the way I have to give the nod to FFVI. Regardless of what others may have said, the story and characters in V (though enjoyable) are incredibly shallow and cliched. Maybe not as much so as many think, but nothing that's even remotely on the level of FFVI, or even FFIV. If the battle system weren't so damn enjoyable, I'd have never made it the whole way through.