None of them.

Because:

1. Sher Bd. Deuba had led one of the most corrupted governments in Nepal. All kind of dirty political games including the rise of Maoist insurgency, pajero incident, buying and selling votes of members of parliament etc started when he was a prime minister of Nepal. He does not have any vision and does not have any qualification to be a national leader to lead the country to prosperity.

2. Prachanda has shown how he can flip flop on issues time and again. First he was completely against the parliamentary system, then he was against the prime minister system, he was for presidential system and now he is up for the prime minister post. He is fluent in speaking hindi when it comes to giving interviews to Indian Channel. He goes to Madhav Nepal and tells him that he supports the later for President and then comes out and changes his tune totally, does not have credibility at all. How can we believe him?

So, either way we are in a deep $hit.

God Bless Nepal.