Oh Bhai, ye kia hai!!
I can comment on few who I have seen playing.
Abid Ali, I saw his innings when he scored 100 and got out cheap in next match. Let me tell you, he would be made mince meat by the fast bowlers. His techniques are 80s. He would be a complete disaster. Even if he scores, it would be with a strike rate of 70 or 80. it is a recipe for disaster.
Iftikhar is among the worst bowlers i have seen in recent years in Pakistan. He only have little swing, which doesn't work with two new balls.
Rizwan is crap, he is no better than Hafiz or Malik. I would have Hafiz over Rizwan any time of the day.
Same goes for Sami Aslam, may be good for tests, but complete disaster for one dayers and T20. His style is what Ramiz Raja had. let me tell you Raja used to boiled my blood to no ends.
I think the left arm bowler Imad is better than Nawaz. But I don't think that Imad is a captaincy material, i don't know why some people think that.
Out of all the name you mentioned i think Harris Rauf has potential if Pakistan work on him and provide him opportunity and practice.