Hmm, what strikes me as odd is that Picard is an INTJ and Data is an INTP and yet they are good friends and get along well. Don't INTPs and INTJs usually have a hard time getting along? I guess with Picard as a likely 1w9 INTJ rather than, say, a 5w4, we avoid the usual petty arguments those two types often find themselves in... any thoughts?
My husband is an INTJ. If I remember correctly, he is a 1w9. I am mostly an INTP. I'm not sure whether we are an exception to a commonality or the rumor is wrong, but we get along pretty well.
Never heard such a rumor. I'm INTJ, and I've always gotten along fine with INTPs of either gender.
TOS:
Kirk: ESTP
Spock: INTP
Scotty: ESTJ
McCoy: ENFJ
Anyway, Spock has always struck me as an INTP. The way he expresses himself with such certainty gives him an INTJ-like flair, but I think his thinking process is more expressly logical than intuitive. INTPs who have chewed on a problem long enough to work out its logic such that they fully believe themselves to be correct can represent themselves with the same kind of certainty that comes reflexively to INTJs. But with Spock the certainty isn't reflexive. It's the steel trap of flawless formal logic.
Just my take. Your milage may vary.
TNG:
Caiptan Picard : INTJ
William Riker: ESTP
Data: INTP
Geordi La Forge: INFP/ISFP
Doctor Crusher: INFJ/ISFJ
Diana Troy: INFP
Wesley Crusher: INFP
Worf: ISTJ
Chief O' Brien: ISTJ
Barclay: INTP
Guinan: INFP/INFJ
To my read, Giordi seems far too gentle, patient, flexible, and sensitive for a hard-charging ETJ.
Voyager:
Janeway: ENTJ
Chakotay: INFJ
Paris: ESTP
Belanna: ESTJ
Harry Kim: ENFJ
Tuvok: INTJ
Neelix: ENFP/ESFP
The Doctor: ENTP
Seven: INTP/INTJ
Kes: INFP
Vorik: INTP
Chakotay: very into his private search for self and understanding other viewpoints, but still a stand-alone individual, not a joiner; Harry Kim: constantly thinking about his parents and worried about how his absence might effect them, constantly full of hope and idealism (that THIS time, they're going top get home). Both seem very much "NF" types to me.