User blog comment:Lia Schiffer/419: Deicide 21 (Transcendent God Rock)/@comment-1774413-20100909220448

The way i see it is that Aizens second form, (with the long hair and no wings) was the most balanced form he had. This form seems closest to Ichigo's and in this form i believe he was more proovably beyond both shinigami and hollow. However with each set back he recieves (Gin stabbing him/ichigo slashing him) his powers have become less balanced. As Aizen stated the hogyoku materializes the hearts of those around it and with these defeats Aizen becomes more enranged and beastial and the hogyoku simply reflects this in changing his form. I believe this is seen when Gin almost kills Aizen, I genuinely believe Aizen thought he was gonna die and flew into a rage, from this the Hogyoku changed his form. As he gets angrier his form becomes more hollow like. I dont think that with each "evolution" Aizen has become more powerful, i think that each evolution shows his heart becoming overcome with rage and more corrupted. Clearly he is not beyond shinigami and hollow. My hope is that the Ichigos getsuga tenshou manages to strip the hogyoku from Aizen, returning him to his original shinigami self, whilst also majorly draining ichigos power. This way Aizen can use his bankai and he can finish the fight with Ichigo as a Shinigami and as the old Aizen. But that is just a hope.