Which field of engineering is the most difficult, and why?

In the order of hardest to easiest— of course, being relative to each other

9.5/10— Nuclear Engineering— gluons, tau neutrinos, bosons …
9.2/10— Electrical Engineering— circuits galore
9.0/10— Computer Engineering— digital circuits AND coding
8.8/10— Chemical Engineering— chemical diagrams, stereochem, etc.
8.6/10— Aerospace Engineering— design of spacecraft and aircraft
8.5/10—Biomedical Engineering— chemical applications in medicine
8.4/10— Mechanical Engineering— automobiles, microwaves, fans, etc.
7.5/10— Civil Engineering— homes, subways, skyscrapers, etc.
7.3/10— Industrial Engineering— factories and industrial efficiency

For a comparison, I’d say physics is on the order of 9.9/10.check it below :-