Prime Watt had forgot more about boxing than Amir knows. When it came down to it Jim did whatever was needed to get the job done (as Sean O'Grady found out). Amir's speed would cause issues, as would Watt's soft eye tissue, but I reckon Jim would get Amir into the championship rounds and break him down brutally. Watt TKO15.
amirs fast hand would cause anybody major problems- i think khan is a completly different animal now with freddie roach in charge so on this evidence i would have to go with amir khan ?
i have a big fight coming off and im thinking of having a big bowl of beef curry just before the fight as it seems to calm me down-- do you think this would be advisable