User blog comment:Salubri/Final Fight: Reflections of an Unrealistic and Ridiculous Battle/@comment-44061-20100129181628

Supposedly it has been mentioned by Kubo in interview that he is not revealing Aizens past. As well thats simply downplaying even the captains are in awe of the vizards power and not to mention most are former captains. The very point of being a captain makes you elite among others, I think you may have missed the importance of the position, which was explained in the SS arc and onward. If your only taking in four people as being the most powerful and elite period then your missing the importance of the position. Age is a factor true and yes verying power levels but everyone has their weaknesses and strengths, but brushing it off cause it wasnt Yama or Shunsui isnt fair to them or their position. That makes my point even more so. One battle and one hit cause he didnt figure it out yet. That doesnt count no one beating him in a one on if they cant be hit as a group. Hence strength in numbers. Regardless of specialty or not.