Earth
I don’t know about the big ships but, on the small boys I was on, you feel the ship quivering as the bow goes under and back up. I’ll never miss that!
You certainly were not on vessels which were made to deliver a pleasant ride.
An interesting personal observation about sea sickness. Some say it is all in one's mind, and I guess it is. I can succumb to sea sickness if the motion is too wild when I am in a subordinate position on a crew. On a ship I would take those salty pills, or use a patch if it got rough.
However on my own boat where I was in command, which was a 30 foot IOR sailboat, which I did purposely take offshore in storms, I never have experienced a bit of motion sickness. For me that mental aspect of being in command was a cure for the mental aspect of seasickness.
On ships I never have been in command, or for that matter have been a part of the deck crew. Where I was working, was down below the water line, down in the engine spaces most of the time.
I found that how high one is located in a vessel makes a big difference to how it feels. I don't like being in a bow, especially up near the deck level, I much prefer to be below the water line, in the stern, the ride is better for me there.