I sailed on the fantasy when my son was 13 months. He really liked it! The Nemo’s splash area was great, he loved the little slide in there. Toddler time was also offered twice a day in Andy’s room. It also had a little baby private night show earlier than the Main one which was great for my son who couldn’t stay up that late.
We are sailing on the magic in two weeks and my son will be 19 months on it. I’m sure it will be great but the splash pad doesn’t look nearly as fun. My sister just sailed on the Magic and there was only one toddler time offered and the nursery was small. There also wasn’t a little pirate night show on her sailing, only the main one at 10. However, two of the dining rooms were really entertaining for her kids.