from the point of view i see it. You are nothing but an obsessed fan of gin who fail to see the epicness of lord aizen and kubo.
Now let me ask you a question.
Since when were you under the impression that you dont think that lord aizen is unique and epic?
From the moment he was hanging off that wall in the seretei. Aizen is not a bad villain but he isn't unique. He is cold hearted, self pitying, egotistical and has God complex, this apply s to nearly every villain. He is, granted, a genius villain, somewhat of a Moriarty but his lack of complexity in his personality, brutality, back story and motives, unfortunately, makes the character too linear. Perhaps this will be corrected but I doubt it, I view Aizen as a waisted character, someone who could have been far more complex
Kubo is a great character creator but he is not a good story teller, he has failed to maintain the popularity of his story and he did that himself.
As for Gin, are you not too a disgruntled Aizen fan, upset because I do not see the appeal of the character? Pot calling kettle black somewhat but then all fans are biased to there favourite, that is just natural.
Gin made no sense either. His character was unique and unusual and yet he was waisted in a pointless storyline and ridiculous motives, Rengiku gets beat up, he swears revenge, becomes psychotic killer and then dies and leaves her to mourn for him her entire life, yes, wonderful logic that.