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note that it depends on the heat treatment, edge geometry, what your actually cutting and the way and grit that you sharpened your edge at. so there is ALOT of variables in edge retention.
also note that a custom maker's heat treat can make 440c and other budget and mid level steel as good as m390 in edge retention. but as for production knives are concerned they try and get a balance of toughness and edge retention but side more towards toughness due to mass production and warranty (cause if its too hard customers will get chipping and other issues). so blade steel types can range all over the place, it really depends on how it was made. you can check some steel testing on these links:
http://www.bladeforums.com/threads/ranking-of-steels-in-categories-based-on-edge-retention-cutting-5-8-rope.793481/
http://www.cliffstamp.com/knives/reviews/blade_testing.html
https://www.youtube.com/watch?v=3ZMVqpqBRD4
BOHLER N690 Our best conventionally produced stainless knife steel. Great value in a corrosion resistant knife steel with excellent edge holding capabilities. Additions of chromium and vanadium enhance edge holding capability, while cobalt and carbon help to retain high hardness. Hardens and tempers to 57-59 HRC and 60-62 HRC with deep freeze. For maximum toughness, harden and temper to 57-59 HRC. For maximum wear resistance, harden and temper to 60-62 HRC.
data sheet PDF http://www.bucorp.com/media/BOHLER_N690.pdf