This is a pretty subjective question. I personally like deck 7 the best, and have stayed in either cat. 5 or 7 on this deck for all of my cruises. I don't know that there are cabins which are better than others on this deck, but there are some differences. The cabins which are all the way aft (7130-38 and 7630-38) have solid metal railings on the verandahs, as opposed to the see-through safety glass in the other cabins. This is an issue for some, since you can't see as much if you're sitting down. This doesn't particularly bother me. The conventional wisdom is that you feel the ship's movement less at midship, but I don't really notice this. I like being aft, and near the elevators. The elevators don't make much, if any, noise, and it's convenient being close to them to facilitate getting around the ship. I like the aft cabins because they're closer to the back balcony on deck 7, the restaurants (on decks 3, 4, and 10), and the coffee station on deck 9. My advice would be: choose a cabin forward of 7120 or 7620, if the railing is an issue for you, and then something near one of the elevators. Good luck!