(Feel free to vote in the obligatory preference poll above.)
Ignoring mid-wing and multi-plane designs, I think preferences are more often colored by other airplane design choices, not the proverbial high vs low wing. There are a ton of sites that explain the pros and cons and differences, as noted below. But in my admittedly limited experience it is other design choices that really matter. It never seems to be that you can select "all else being equal" because so few design choices are equal.
For example, the first "high wing" aircraft I flew in was an SGS 2-33 glider. But because the wing is behind the pilot, all-around visibility is excellent (tandem seating helps too - and so few distracting instruments!) When I transitioned from Cessna 152/172s to Piper Warriors, it was the missing left door and different feel of rudder steering that left a negative impression. Visibility in the Cessnas and Pipers I flew felt downright claustrophobic compared to glider - didn't matter where the main wing was attached.
A web search of "high wing vs low wing" yields a lot of pages that compare the two places to mount the main wing, so no point in discussing them in detail here. Here are just a few of the top sites:
https://airplaneacademy.com/high-wing-vs-low-wing-aircraft-pros-cons-and-key-differences/
https://simpleflying.com/high-wing-vs-low-wing-aircraft/
https://www.pilotmall.com/blogs/news/high-wing-vs-low-wing-what-s-the-difference-between-them
https://www.planeandpilotmag.com/article/mysteries-of-flight-high-wing-versus-low-wing/
https://airfactsjournal.com/2020/09/high-wing-or-low-wing-ask-mother-nature/
Ignoring mid-wing and multi-plane designs, I think preferences are more often colored by other airplane design choices, not the proverbial high vs low wing. There are a ton of sites that explain the pros and cons and differences, as noted below. But in my admittedly limited experience it is other design choices that really matter. It never seems to be that you can select "all else being equal" because so few design choices are equal.
For example, the first "high wing" aircraft I flew in was an SGS 2-33 glider. But because the wing is behind the pilot, all-around visibility is excellent (tandem seating helps too - and so few distracting instruments!) When I transitioned from Cessna 152/172s to Piper Warriors, it was the missing left door and different feel of rudder steering that left a negative impression. Visibility in the Cessnas and Pipers I flew felt downright claustrophobic compared to glider - didn't matter where the main wing was attached.
A web search of "high wing vs low wing" yields a lot of pages that compare the two places to mount the main wing, so no point in discussing them in detail here. Here are just a few of the top sites:
https://airplaneacademy.com/high-wing-vs-low-wing-aircraft-pros-cons-and-key-differences/
https://simpleflying.com/high-wing-vs-low-wing-aircraft/
https://www.pilotmall.com/blogs/news/high-wing-vs-low-wing-what-s-the-difference-between-them
https://www.planeandpilotmag.com/article/mysteries-of-flight-high-wing-versus-low-wing/
https://airfactsjournal.com/2020/09/high-wing-or-low-wing-ask-mother-nature/