I was just thinking how Myers-Briggs, the Enneagram and the stackings interrelate and what I like most about my specific combination. Please add yours.
I am an INFJ, 9w1, sp/sx/so.
What I like about the INFJ and 9 combination is that I am naturally drawn to anything that is deep and complex but still have the 9's natural optimism and a certain lightheartedness, when it comes down to it I tend to look for the best in a situation or person. I can think of INFJ 4s I have met who are much more pessimistic and slightly neurotic, more of a suffering artist type. (Am obviously generalising. )
I also like the 9 and sp combination, I get along with a lot of people and easily fit into a situation but also have pretty strong boundaries (unlike what descriptions normally say about 9s and them trying to merge with someone or something else) and an independent core (which I think is an INFJ thing), unwelcome intruders are kept at bay by polite Fe and if they still don't get the message they will run into a brick wall. That's a safety mechanism because once you break through to sx territory I will tell you a lot of stuff and find it hard to get you out of my system again.
I also like that the J and the 1-wing kick the 9 in the butt to get down to business NOW.