I find eastern to be equally as progressive at times as the west, depending of course. One thing I admire most about eastern RPG's is the quality artwork, and detail..The atmosphere, something that the western can create as well but never to the same degree as the east. Oblivion was visually incredible, but the east often have dramatic scenery, places in extreme conditions, devastated by natural disaster, or some place completely frozen, completely in flames, things like that, and I enjoy that.
Another thing I find incredible about eastern is the sense of epic approach. The bosses, and the amounts of enemies (not as common in RPG's but, actually, more in cinematic scenes, and sometimes, in fights.) When you come across a boss that is so large you have to attack his limbs one by one, or figure out some ridiculous way to bring a titan down, it's engrossing and I don't feel that epic approach in western games.
As a whole? I'd probably say Eastern, but the West does create some of the best with different styles, much more based on mechanics, specific play styles if you will.
I'm not even really into FF too much, but just remembering all the RPG's I've played (quite a bit..) and how incredible some of the imports were back in the day (Dreamcast, and the like) I feel that Eastern comes out on top for me.