Wow. Somehow I've ended up playing through six different Final Fantasy games simultaneously. As of right now I've got save files in Final Fantasy I and II (FF Origins on PlayStation), III (DS), VI (Game Boy Advance), VIII (PC version), and XII, five of which I've never beaten before, and all of which I've played at least once in the past couple of weeks.
The obvious downside to this is that by spreading my precious little video game time across six different games, I'm not really making much progress towards completing any of them. On the other hand, since I'm playing all of them at the same time, I get to compare them side-by-side in a way I've never been able to do before. It's quite a fascinating look at the evolution of a video game series.
Hopefully I'll be able to actually finish some of these games before I overdose on Final Fantasy and end up in a coma (though I'll probably get fed up with FF and start playing something else long before my brain melts into a puddle of goo).