My first Disney cruise is in October. From the things I've read, I'm glad my first experience is a western Caribbean cruise on the Fantasy with the promenade, etc.I agree that the pool deck offerings on the Wish are vastly superior to the other 4 ships.
However, I intensely dislike Arendelle...both the food and the noise. 1923 is an excellent restaurant. I don't have an issue with the restaurants on the Dream and Fantasy. Except the Pirates Night menu. On ANY of the 5 ships.
Agree about the elevators, especially the lack of midship elevators. Glad that DCL has switched out those damn buttons.
And the lack of a fully walkable promenade deck 4 was a BIG mistake. While the Wish is lovely, I'm not fond of it. And like you, I'm also Platinum Castaway Cay member. My cruise later this month is on the Magic...can't wait...so I will have sailed in all 5.
The Treasure just isn't doing it for me.
The Concierge sundecks on the Magic, Wonder, Dream and Fantasy only have 1 hot tub.