The aft balcony cabins have the best views on the ship. The noise levels should not be a problem. I have had the wrap around balcony, but not under the Panorama deck, and had no noise problems.
There is a Urn motif that is used for everything from table legs to pedestals and support pillars. They are throughout the ship but you get used to them and they can even become somewhat familiar.
It was two years ago that I cruised on the Legend and found the food to be near the top of the list in my cruises. Then again that was two years ago.