Only thing I can complain about XAS is how the items work. I can't stand very much and its annoying that in order to use item, you have to be in the field. But other then that, it looks alright to me. It needs the hotkey features to make it a little easy.
As for BABS, it will be better if you can just use items/skill in the hotkeys instead instead of pressing the correct number and then use a button to use both skill and item, I wish Boris can also add a perfect multihit, where it causes multiple damage in the same skill or attack frame.
You can also use "overdrive" (sick of this word...) effect like Soul Rage..
Overall, BABS can use different scripts, but it cannot do these:
QuoteFAST / Slow / Stop / Confuse / Seal
Although you can mimic Slow and Stop with events (parallel process + condition branch+ wait x frames? and parallel process+ condition branch + change actor speed?)
And who needs seal? -_-
While XAS is most likely being limited, as well as a bunch of script doing one thing.
And most likely you cannot edit that gay HUD at the bottom unless your a scripter.
Other then that, fancy stuff aren't always good. BABS is easy to use. And have a good comfort level. -_-;; And confident that BABS can use different scripts that doesn't disrupt the process.
My vote: BABS
Enough drama.