Hand swinging props.
I'm actually relaxed swinging a proper rotation prop, and in something like a Cub from behind the prop, i.e. right-handed. I also have to have a good deal of confidence in the individual in the cockpit, and they have to understand that until I've walked away, I call the shots.
I am not comfortable swinging props on my own.
I will always use chocks, after a Chippy almost got me, and a couple of people who were standing close.
Most things will require chocks, although the Chipmunk brakes are quite good
The Cessna and Pipers with a pre-engaged starter, I will not touch, so that rules out the C172, for me. I also think it is nigh on impossible, safely.
The Yaks, a lot of folks still do, and on the 52, I think it stands too high, but admit if fully primed, it will fire reasonably easily.
Now where was that POH....