Khan's Chances.....

[Spirit]

Khan vs Campbell- Campbell UD
Guzman- Guzman UD
Pac- Khan KO by luck or Pac UD (Khan is a huge lightweight, I can't see pac taking those shots for 12 rounds straight. If pac can utilize a gameplan though he'll win comfortably)
David Diaz- Khan UD
Casamayor - Khan late TKO (even though cassa was impressive against katsidis, katsidis doesn't have khan's speed and takes a lot of shots. Whenever cassa seems to be in trouble he runs and picks his shots, with the punches Khan throws I can see him win this unless he gets frustrated by cassa's antics)

[Addition]

Khan simply doesn't have chance against those guys, he needs time to develop.

[Sealhound]

Kahn would probably beat half of them. He would deffinitely beat Casamayor.

[Pugilistic™]

At this stage of his career his chances are slim but i do give him a chance against david diaz.

lets see how he does when he steps up his competition in a year or two.

[The Legacy]

It's way too early to tell.

He is an extremely talented young boxer but he's had 17 fights and he needs Frank Warren to step up his competition before he fights the big boys.

Fighting guys like Michael Gomez isn't going to help.

[majestiC]

Khan vs Campbell - Khan UD, nothing special about Campbell hes overrated after his good win vs Juan Diaz.
Khan vs Guzman - Close UD Guzman
Khan vs Pac - Pac KO, but depends as Khan is huge compared to Pac.
Khan vs David Diaz- Khan UD
Khan vs Casamayor - Casamayor KO, has the style to wait and catch Khan at the right point.
Khan vs Katsidas - Most likely Khan KO, but wouldn't be suprised if Katsidas won by KO aswell.
Khan vs Juan Diaz - Khan UD, Juan is a bit to small for my liking would get picked off from distance.