Since customizing characters to recreate classes is a big part of my fun in a FF game, I tend to prefer games that permit this over others that may even have a better story and more lovable characters but if I don't have the chance to recreate the classes it's less fun to me, a lot less... I prefer FFVIII over IV and IX although they are overall better as games...

The perfect system is to me X's though... It's up to you to decide everything, even the single number of status increase and you can skip what doesn't fit for the class you want and keep what fits instead...