These were the last three FF games that truly embodied the Final Fantasy world, all with their own charms. VII, VIII, IX are what I call the Final Fantasies.
YET, it all started with the mechanics developed for VII. Its two successors, especiall VIII, really fine tuned the combat system to perfection. Yet, this game was shown as a flawed experience with the release of VIII and even moreso with the release of IX. Great game, one of the true innovators of the RPG genre early on.