I like being mid-ship for two reasons. One is .... it's more central. Not that I am averse to excerice, .... I just like the convenience of being in the middle.
I don't get seasick (although my daughter does) .... and 90% of the time the movement does not bother me .... but in rough seas, I'd rather be mid-ship. When we sailed sovereign, we did a ROTS, and and ended up with an extreme forward cabin at the end of hurricane season ..... NEVER again.