I think it is a known fact by now that Prashant is the unofficial II since he is getting most votes from his region. I don't think it is possible for the other 2 to beat his record unless people spend their entire salaries voting for Amit/Emon.
So Emon and Amit are fighting for the second position. All the judges want Amit to win the title. Even from the voting, it is quite obvious that Amit gets more votes then Emon. So I think this week it is definitely Emon's turn to leave. Personally, I would have liked to see Emon with Amit in the top 2 as then it would be a fight for the Idol. But if Amit and Prashant are in the top 2, it is quite obvious that Amit is a far better singer, infact there is no comparison with Prashant and will be the II for me irrespective of who gets more votes.