Here 's what I think of the show so far
Ladies first - Nihira and Himani are both good, but have totally different styles, so its hard to choose between the two like comparing apples and oranges.
As for Ujjaini, I thought she was very talented, but does not put in 100% effort like say Himani does. I admit that HR is not the best mentor, but Paresh has that disadvantage too and at leat tries very hard.
HR's heart belongs to Vinit, but I will remind his critics that he has openly acknowledged Paresh's potential at least once.
For the guys, its a tough fight. Vinit is outstanding, but Hmea is very good too. So is Debojit, but he is prone to fall short of singing his best like Ujjaini.
I don't think Vinit shouls be blamed for HR's stunts, he is a great singer and the humblest of the lot. Notice how he sinks to the ground after every accolade.
As a mentor, AS is the best