What subject was hardest/easiest for you as a child and do you think that it will be similar for your child(ren)?

I was always a very good reader/writer and I was decent in math and science. Honestly the thing that was hardest for me was PE. I like games but I am not super coordinated. My DS1 is very athletic so I doubt that will be a problem for him. He seems to be picking up math and reading as well, so I am not sure what his hardest subject will be.