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

I see a lot of people are amazed by the power level of Ichigo and Aizen ,sorry to disappoint you but Yammato is still the most powerful in the series.

Aizen cannot go bankai in his current state he is fused with the hyogoku, utilising it's power, makes no sense for him to do away with the hyogoku powers to use his own.

ichigo's reiatsu is not leaking anymore cause his desperation is now gone, he is focused and cold blooded at the moment, he now knows what he has to do to protect his friends and he now has the power to do it(theory and some fact)