Board Thread:General Discussion/@comment-26912075-20160115194709/@comment-3423279-20160116060045

One of Ichigo's unique abilities is to unconsciously "feel" what is behind someones blade, he did it to Fused-Zangetsu and only felt sadness from it when they fought as his sword didn't want Ichigo to lose his ability to protect.

I don't think the fact that he felt solitude from Aizen's blade is that out there but I do agree that Aizen is not a misunderstood person, his goal of killing the Soul King no matter how he needs to do it was very clear, he was willing to do anything to get it done and even manipulated Momo into basically requiring Aizen to function properly.

Not to mention he used his Zanpakutou in a horrible way, tricking the Captains into nearly killing Momo with their combined assault and once again pushing Toshiro's berserk button.

Aizen is amoral, he even admitted that he had discarded them as they just hold him back so he is pretty much a sociopath, albeit an extremely intelligent and powerful one.