Marx was (perhaps) globally wrong (but locally right); Hayek was mildly right all the way. But Marx, when right, had huge insights; e.g. Chapter 14 of Das Capital I on the Division of Labor and its dismemberment of humans. Immense erudition: he moves from Xenophon to obscure German writers. Hayek’s writing is indigestibly dull (and according to J.G. he was dull in person), Marx is lively, rich, and gripping. Compare the looks of the two fellows.
Who would you like to have dinner with?