Okay, so I'mabout 11 hours into VI. Kefka recently destroyed most of the world, Terra's laying around in bed and my only party consists of Celes and Sabin (though I'm about to get Edgar back in my party). I think something that sets me back from VI a lot is what I percieve as stupdity and unrealistic actions by the main cast, like them actually trusting the empire. Honestly, Locke, Celes and Terra seem to make consistently bad decisions. And I have no idea what Setzer's motivations for hanging out with the party are. That said, Mog and Edgar are pretty awesome, and Kefka is a pretty good villain (as is Ultros). Also, after hearing more of the soundtrack, I have to say that while it does have some strong songs, it's nowhere near as good as VI, or even VII for that matter. However, as an overall game, I'll still rank it above VII.
VI, thus far, still ranks in my lower tier of Final Fantasy games. Not even close to touching VII, IV or Tactics, and still a significant leap from IX and X, but still better than XII and VII. Actually, I feel like XII and VI suffer from a lot of the same problems with seemingly stupid decisions by major cast members and a lack of realistic motivations.