User blog comment:Lia Schiffer/417: Deicide 19/@comment-1447282-20100827230253/@comment-44061-20100828000235

Well Like i said if we go by Soifon's her shikai presents far more interest and deadliness then her bankai, although it is powerful as in her own words she finds it useless and not up to her standards for what she does hence why she never uses it. So Aizen bankai maybe powerful as bankai's are but if all zanpakuto run under such rules then it would stand to reason that Aizen's overpowered shikai maybe far more interesting and deadly in use then his bankai.