User blog comment:Yungbeatz/Do You think Isshin Is Stronger Than Aizen?/@comment-919115-20100502213532

Isshin is probably stronger than Aizen. I mean the dude sent Aizen flying through MULTIPLE buildings with the flick of a finger (though that could have been Hado number 1, I am not sure) and he made Aizen "reach the limit of his Shinigami self" and all that