yeah, i'm not sure if it's just function matching, but i've found INTJs more open minded than INTPs. it's like INTPs can't see outside of Ti, while the Ni of the INTJ allows them to troubleshoot different possibilities before scoffing at them. of course, it takes a willingness to be open to a possibility, which i've seen plenty of INTJs simply not entertain because whatever's been put forward just seems wrong to them.
You hem me in -- behind and before;
you have laid your hand upon me.
Such knowledge is too wonderful for me,
too lofty for me to attain.
Ti is pretty damn closed, but so is Fi. Not sure which of these functions best pertains to the 'mind,' so I'll go out on a limb and say that the question is just balls to begin with (as though half the people in this thread haven't said pretty much the exact same thing).
I will say that overall, in most practical matters and practices, that NTJs have significantly less interests and hobbies compared to NTPs-- though they make up for it by just being really obsessed with the few they do have. NTJs are much less interested in trying new things than NTPs, and this is typically the measure that I gauge practical 'closed mindedness.' So my vote goes to the NTJs.
I disagree. I would say almost every INTP I have met is more open minded then just about every INTJ I have met. Ti is very open minded, even go so far to say that an INTJ would complain that someone is closed minded because the INTP does not agree, where as the INTP does see both and is open minded, they just dont agree. The INTJ more then likely wouldnt really even see what the INTP said, but hung up on thier own ideas.
oh, just read posts, it seems we have to do this on a function level, not reality
edit: What it actually takes for an INTJ to be open is respect for the other person, without respect, its almost like the person doesnt exist. Just some annoying voice that is yapping
Take what I say with a grain of salt, because that's all it is compared to the ocean of complexity when it comes to actions and real life.