I think Parshant, Amit and Emon should be in top 3.
Plus points of Emon:
1)He is trained singer
2)Can handle his harketein very well
3)He is outstanding and very powerful in his mid range.
Weakness of Emon:
1)His voice quality is average not as good as compared to Parshant or Amit
2)His voice range in which he can sang comfortable is very small. If anybody notice him on 10th August, He was flat on low notes, then in mid notes he was outstanding and powerful but then in high high notes he was going little nasal. You can listen it again you will notice.
Plus point of Parshant:
1)His voice quality is excellent
2)Good enough pitch range
3)The song he sung on 10th August need a long breath to sing. He sang it very effortlesly.
1)He is not trained singer
Plus points of Amit:
1)Good control on voice
2)Voice quality id excellent almost matching with Parshant
3)Good enough range
4)Handles notes very well
Weakness of Amit:
I have not noticed any
About Ankita, Puja and Chang: I think they should leave before Parshant, Emon and Amit.
Ankita goes off keys many times. Not good
Puja a trained singer but voice quality does not match with Parshant, Emon or Amit
Chang: He is total an average singer nothing really outshines him from the above Parshant, Emon or Amit.
I think Amit deserves the Indian Idol Award.