I hated all of them, but especially wrestling. My teacher was a big bully who used to play football before he wasted his life.
He would always pick the smallest guys in the class to demonstrate the moves on. It was just an excuse to dominate someone much smaller and weaker than him.
least running, most canceled. Ok I guess I like this scuba one I had. Honestly the whole change twice and shower in the middle of the school day is sorta a pain.
It's probably not chlorine that smelled, it's most likely piss. I remember I went to a gated community swimming pool once and the water was pristine, no smell or anything. I was like wtf this was amazing.
Favorite was ballrush. Touch when the teacher was watching tackle when he wasn't looking.
Least Favorite was the beep test. You had to run back and forth and the allowed time got shorter and shorter. So you had heaps of time to rest when you didn't need it and no time when you needed it. You also had to keep increasing your pace. Also the teacher sometimes would be a dickhead and force you to keep running when you were out or punish you with running laps of the field for the rest of the lesson. If you were caught walking during punishment laps you would repeat the next time you had gym.
Running is the worst for me personally, between weak ankles and maybe sports-induced asthma. Thankfully in high school I got a pass out of any running due to a slightly nuts podiatrist who thought the only sport that was safe was snow skiing because my ankles were bound in. (Even swimming was out, apparently? Made no sense to me. I went on to play water polo anyway.)