29.2 percent of Latvian voters said they would like Bondars to be the premier, 27.8 percent named Piebalgs, and 22.9 percent - Ventspils Mayor Aivars Lembergs.
In the meantime, Lembergs is the most popular candidate with Russian-speaking voters - 61.8 percent named Lembergs as their favorite candidate for prime minister, while 54.5 percent named Riga Mayor Nils Usakovs, who is also the most popular with 6.8 percent of Latvian voters.
32.1 percent of Russian-speaking respondents named For Latvia from the Heart's leader Inguna Sudraba, while Latvian voters' support for Sudraba is at 11.2 percent.
Solvita Aboltina, Unity's chairwoman who will most probably be nominated by the party to become the next prime minister, is supported by just 4.8 percent of Latvian and 2.3 percent of Russian-speaking voters.
Lembergs - who has been on trial for major graft for more than 8 years - is the most popular candidate with residents of Riga and other cities in Latvia. In Riga, his popularity rating is almost 6 percentage points higher than support for Usakovs.
Bondars, on the other hand, is more popular with residents in the regions.
However, Riga City council responded with a press release suggesting mayor Nils Usakovs actually has a remarkable 80% approval rating among city residents.
Neither Bondars nor Lembergs have much chance of becoming PM however.