Keynes has always been more popular than Hayek

Or at least is what the Ngram Viewer suggests. Below starting in 1919, after the publication of Keynes' The Economic Consequences of the Peace.

Note that after the spikes with his books on the business cycles in the 1930s, and the slightly larger spike after the Road to Serfdom in 1944, Hayek drops to re-emerge only after the Sveriges Riksbank Prize (aka Nobel). Keynes on the other hand has a surge after the General Theory in 1936, and remains with the same level of popularity, with no decrease even in the 1970s, the period of the so-called crisis of Keynesian economics. Both seem to decrease in popularity right before the last crisis.