I enjoy high floor, since, as mentioned earlier, it is often the CL. But I like near the elevator if the hotel is big. Nothing worse than walking 5min to your room, through a maze (think Grosvenor House), only to find out the key is demagnetized, walk down to the lobby and back up again. Here goes showertime before heading to dinner...

Also, since the CL/top-floor is usually really quiet, being close to the elevator has never been an issue.

At the JW in KL, the junior suites are the rooms the closest to the elevators for example.