Is Devon Alexander overrated and do you think he will beat Kotelnik?

Everyone talks about Alexander, Maidana and Bradley as the 3 best in the Light WW division, but as i'm English and a fan of Amir Khan, i think a lot of people underrate Khan and think he is just speed with no chin, but i would love to see him clear up the Light WW division. I know it will be very hard, but i'm sure with the right frame of mind, good training and tactics he could do it.