ARPITA:
Good: Intelligent, analytical, Pretty, sings well.
Bad: Cunning, manipulative, unduly ambitious, overestimates herself.
QAZI:
Good: Clean-hearted and honest, confident, performs well.
Bad: Voice quality not so good, untrained singer.
REX:
Good: Energetic, confident, natural, sings and performs well.
Bad: Cunning, some unpleasing mannerisms.
Conclusion: Qazi is a fine human being, a good performer, but an ordinary singer.
Rex is both a good signer and a good performer, but an ordinary human being.
Arpita is a good singer, not as good a performer as the two boys, and she is a very ordinary human being.
My vote for Rex and Qazi! How about you?