We have worked our way through most of the categories in 29 Disney cruises (except, of course, the giant suites, and we've also never been in a Cat. 12), and we've also tried several subtypes (for example, both the plexiglass and the metal verandahs that are in Cat. 6). My favorite stateroom, 5650, is a category 6. I love the verandah, and I also love its far-aft location due to the peace & quiet. We've been in a Cat. 5, and there is no difference between that and a Cat. 6 except being a deck or two higher...for me, that isn't an advantage, since I love being close to the water.
We've only had a Cat. 7 (Nav. verandah) once, but I really liked it...nice and cozy.
For inside staterooms, I of course always try to go with a secret porthole room, since they are not truly inside. If I couldn't get one of those, I would go with an 11 rather than a 10 because we've had a couple of bad experiences down on deck 2. At least the 11s are on the higher decks, with less potential for noise overhead. I would definitely sacrifice the split bathroom for less noise potential.
We've stayed on almost every deck, but not deck 1. I am curious about those dual porthole rooms...can't decide whether I'd like or hate them!
Barb
Visit the Platinum
Castaway Club at:
www.castawayclub.com