I've been thinking about this and was realizing that each type's humor seems to be based on toying with whatever is their foundation perspective. Things that are ridiculous and surprising could be the common thread. Here's my hypothesis so far...
INTPs toy with logic and linguistics like printing a syllogism on silly putty and stretching and laughing...
ISFJ's have a strong sense of what is appropriate and i know some who find 'odd' behaviors and such hilarious. I have one close ISFJ friend who loves to coax others into walking weird in front of others and such. It feels so dangerous that it becomes screamin hilarious.
INFJs point of reference is iNtuition with makes connections and examines paradoxes. I think that certain kinds of absurdity that almost make sense, or make a comical connection are the punch line.
INTJs like complex, somewhat elitist humor that most people won't be able to make the connections to get.
ESTPs love outwitting danger and may find the stupidity and slapstick style of the Three Stooges to die for.
ISTPs may be similar to ESTP seeking out a kind of slapstick twist of logic putty?
ISFP/INFP focus on feelings so accident forlorn expressions and mishaps that toy with empathy are spot on.
I haven't accounted for the rest.