I personally like all the venues in the ship. My favorite deck is Central Park. It is a beautiful park in the middle of the ocean where you can enjoy excellent food, spend time reading a book, chatting with friends, etc.
I also love the Solarium, It is a place where you can enjoy a great Ocean view, have lunch, read a book. It has jacuzzis, drinks, etc. It's perfect to rest and have fun.
All the shows are different every night. All of them are high quality shows.