For controller users I'd prefer a LOT less clutter and menu fly-outs designed around the use of d-pad. You keyboarders have no idea how often I accidentally switch skill-bars and the whole fight turns into this big menu hassle mess.

Also I can see that this system will in the future be very limiting to those who have acquired a large set of skills and are restricted to only 3 bars in active use.

I'd be completely fine with a complete copy of FF I-XI style system that keeps all the unnecessary stuff hidden + this game's slow battle gives you more menu hassle time anyway than XI ever did.