ENFP is my second choice for McMurphy. being an N doesn't require using big words. the way he's all about getting to the core of things and penetrating veils of deception is indicative of Ne to me. his rapid understanding of people is, too.
as for miss Ratched, i've so far gotten the impression that she's very Te heavy and not held back by an adherence to traditional values like Si would imply. if anything, she's more about an overall manipulative scheme than fixed ideas, even though of course as the supervisor and executive of a mental institution in a satire of early modern psychiatry she'll have a markedly rigid and unrelenting component to her demeanor. overall she appears flexible in her situational awareness and when she's petrified it's by Fi shame not Si fear. but as said i'm only a third in. i'd like to hear your reasons for ESTJ and ESFJ, respectively.
Harding is an effeminate guy, a suspected faggot. he has a hot wife but can't please her, or something. his perspective is astute, elaborate and somehow neutral like an INTP's but that might as well be rehearsed ISTJ tripe from what i can tell. both INTP and ISTJ are sort of wimpy types if they're not properly developed. this man is a wimp, not because he might be homosexual but in the way he doesn't rebel against an oppression he clearly sees.
i'm glad we all agree on the chief. my second choice for him is INFJ but it feels kinda good spotting such a complex and crucial character as an S type for once. the way his subdued yet immersive Fi-Ni dynamic is expressed through delirious exaggeration of concrete perception is simply beautiful. also humorous, non-intrusively. since he's a mute by choice, he's almost bound to be a P and this is utilized fully in the indirect portrayal of him as a spectator (rather than an external narrator).
i think it's a very very very good book so far. i'm not sure i regret having waited for so long. it seems to have a reputation of a "beginner's" book for 15-20 year olds but perhaps i'm imagining that. i sure hope so because it's just good. it's very easy to read while sacrificing nothing in terms of depth and scope; there's a good sense of nuance to the the pacing and the language itself. in fact i might go as far as to say i love it already. i picked it up at the bookstore in a hurry, somehow thinking i was buying "the electric kool-aid acid test" just because i saw the name Ken Kesey. mistake of the year.