According to me and analyzing from the judges comments - here is what i feel:
Good voice quality - Does the perspective of Voice quality differs from one to another? To me, one voice may appeal and for the other it may not.. So, can that be kept as the criteria for judging VOI?
Versatility - Yes, its definitely required.. Jatin mentioned that Arindhom is a versatile singer.. But for the 2 episodes he sang only fast beat numbers.. Well, he was not selected but still how much importance is given to versatility?
Consistency in performance???? - that can be judged only when it comes to Bemisaal 12
What else is required according to you?? We are searching for a voice, a voice that every one appreciates..