The fine wine index compiled scores from the leading critics who judge wines on a 1-100 scale – Robert Parker, James Suckling, Neal Martin and Ian D’Agata.
Latour averaged 98.8 points, followed by Haut Brion and Lafite Rothschild on 98.3, Margaux on 98 and Eglise Clinet on 97.8.
Mouton Rothschild was the lowest-scoring first growth, with an average of 96.8.
Despite being lauded by some as the best vintage for years, Liv-Ex reports a sluggish start to the 2009 campaign. Prices in sterling are 40% above the level of the acclaimed 2005 vintage and there are fears producers may have misjudged the fragile state of the global economy, and the scale of demand from Asia.