ISTJ
When I first started taking these 20 years ago, I always got ESTJ. Since then, it has been a toss up between I and E. The STJ never changes. The J is on the lower end than it used to be. I think that is because I have become more flexible over time. I am less rigid, less "wound up tight", since transition.
ETA: I think that I would have to be with a Thinker over Feeler. I have a hard time when people don't make decisions based on hard data, or don't think "logically" when it comes to problem solving. It puts me over the edge.
I can be very pragmatic and struggle understanding someone who isn't. With that said, I wish I was less pragmatic and prefer a partner who is less pragmatic than me, in general.