Don't worry about things like this. They are not factors.
If you have a cabin all the way forward near the bow you "might" hear some anchor noise for a minute, and then only at ports where the ship has to tender guests ashore because there is no dock. Similarly, if you have a cabin all the way aft you "might" sense an occasional rumble. This is less so on newer ships such as the Valor which have better sound proofing.
Go for the best price, which most likely is the Riviera deck.