Qui-Gon/Obi Wan was one of my first ever ships in my childhood, and to this day I'm not even really sure why because I don't otherwise have shippy feelings for mentorship/fatherly relationships. I usually love them platonically, but for some reason with Qui-Gon and Obi Wan it is a definite romantic preference. I think one of my fave things about them is their mutual respect and protectiveness. I like that their relationship was long enough for us to see Obi Wan go from a student, to an equal, to someone perhaps even better and more fit than Qui-Gon, and so they have taken turns taking care of each other.

.....As I say this, I'm starting to realize that "mutual respect and protectiveness" might be what I like about Poe/Finn too.