For me, the battle systems go:
XII > X-2 > ATB > X
I adore XII's. I can finally run away if I'm on low health and not get jumped on by some more enemies randomly

Yay.
To me, the battles are more intense and exciting, and require a lot more skill and strategy. I mean, it took me three tries to kill the Elder Wyrm in Golmore Jungle. I squished it the third time because I figured out that you can press Up or Down to change party leader, then you just attack him from behind and stay away from effing Sporefall ¬_¬
But yeah, it's a really nice change to the series. I think it brings in the sense of battle much more effectively than the previous titles. I just wish that the characters had individual classes, that would have been the icing on top a glorious cake
