Nose straight in. I never back in. And to pull through, I only do it when I'm the lone car. Any other cars I back out even if I can pull through.
Nothing drives me crazier in a parking lot than walking and pushing my cart full of groceries when suddenly a car appears and shoots out of what was an empty parking spot. Most people I see pulling through don't seem to look at all.
It's also an issue when a car is coming and turns in to park in an empty spot, then suddenly halfway in, there's a car coming through. I can't believe there isn't crashes in this manner with everyone who pulls through.
Another reason is that I've driven manual all my life. Even this car now, which is the first car I've purchased for myself (plenty for the wife back then) that is somewhat an automatic. It's dual clutch so there are similarities in how it moves to a manual.
When backing out with a regular automatic, you have to place the foot you use to stop on another pedal that isn't the pedal used to brake. Once moving, you have to brake an auto to stop compared to how I back out with manual.
A manual, starting to engage the clutch, the car will move. It will stop moving when you disengage again. So, I'm backing out an inch at a time until I can see. The last car I had, the rear backup camera was wide enough I could see everything within 3 or 4 parked cars on either side. I think I could see a corner of the 4th cars. Even releasing the clutch fully without throttle, the car moves at a snails pace at idle and as soon as you disengage again, it will stop. No throttle then having to move your foot to grab the brake if needed. It is more complicated than with a clutch.
Far easier to back out with a manual than an auto.