I'd like to see his notes on Raymond Chandler and why he considers him one of the best writers. Or why does anyone? I guess that would be an essay on literary criticism.
What is interesting is if you read Chandler's Wikipedia entry it has a quote on how he talked about pulp fiction being formulaic and attempts to break free of the formula were trounced but if you didn't try you'd have been a hopeless hack.
This is fascinating in comparison that PGs formulism appears to be a self-styled self-help (?) essay. Is PG stuck or trying to break free? He certainly has an audience. To what quality should we ascribe his writing?