Centre for Social Justice and Policy Exchange are best regarded think tanks by ConservativeHome's 'influentials panel'

Over the last few days ConservativeHome has been surveying readers and 'influentials' about the quality of the London think tanks. Tomorrow we'll publish how readers voted. Today we publish the results of voting by 94 influential journalists, parliamentarians, bloggers and other thought-leaders.

The Centre for Social justice was voted the think tank that has had the biggest influence on the Cameron project

The CSJ only just beat Policy Exchange. The CSJ won 40 votes and PX won 36 votes. Third, a long way behind, was Respublica with 5 votes.

The CSJ has played a leading role in David Cameron's biggest idea, "the Big Society". Seventy CSJ policy ideas have been adopted by the Conservative Party.

Policy Exchange was voted the think tank that was most effective overall

It won 33 votes. The CSJ won 29 votes. The TaxPayers' Alliance won 18 votes. PX's most recent success was its publication arguing against NI rises.

The TaxPayers' Alliance was voted the think tank likely to cause most difficulty for any Conservative government

It won a massive 55 of the votes in this section. Next came Reform with 10 votes and then the Centre for Policy Studies with 8 votes. The TPA recently produced a manifesto that set it against key parts of the Conservative programme. The Left's argument that it is a Tory front organisation is not believed by our panel of influentials.

The Adam Smith Institute was voted the think tank best at developing new talent

The ASI won 18 votes. Policy Exchange won 16 votes. The TaxPayers' Alliance and the CSJ both won 14 votes.