Final Fantasy 3 was a stressful challenge. A good, enjoyable kind of stress that would get me in an excited gaming state. I am finding FF4 to be more like watching a long film in chunks. I am finding myself mostly going through motions as I replay it and not really finding much "challenge". So it does feel like I am just watching it.
That should go completely against the whole "game" concept, but then again now I am just enjoying something and thinking about things as I do go through these motions. FF4 really did a lot for the genre. Introducing save points being possibly one of the best. (Someone correct me if I am wrong here. I have been looking for a long time.)
I am liking it right now, though. It is giving a really relaxing experience that is something I need in my gaming cycle.