I don't know Gnasher, Khan has had 24 pro bouts within 5 years, Benn had the same amount of bouts in 2 years. In 5 years Benn had fought Eubank, Barkley, Watson, DeWitt and Malinga amongst others. Khan hasn't fought that calibre of fighter in the same time period IMO.
But I can understand your comparisons, I just think Benn was so much more a fighter, and Khan I think is more interested in picking who he fights carefully. Of course there's time for him to prove me wrong, but I'm not convinced.
Who do you think he'll go for next?