I think Aizen is the coolest anime guy..
Character Aizen is from bleach series.He is the captain of the 5th Division when first introduced, but then he betrays Soul Society..
He also stop 7th captain with one attack,Renji attack with bare hand and Ichigo bankai with one finger..
His zanpaktou/Sword = Kyouka Suigetsu (mirror flower water moon)
Command =Kudakero (shatter)
CREDITS:
Google Images