I would not do AI in Aruba. There aren’t too many to begin with but there are so many good restaurants in Aruba you don’t want to miss! My friends did just say at Barceló which is AI however. They said it was in need of a little updating but overall they enjoyed it.
Last year we took a trip to Aruba and stayed at the Tamarjin all inclusive and it was wonderful. Every room had an ocean view and was just beautiful. There is also their sister resort next door called the Divi and we were able to access all their facilities and restaurants as well. They also had a golf cart shuttle going between the resorts.
I actually just got back from my honeymoon in Aruba! We went to Manchebo Beach resort and chose the all inclusive package. We LOVED it! They have the widest beach on the island and it is a very intimate and romantic resort. It is on the quieter side of the island (away from the large high rise hotels) but you can take a cab over to the action if that is what you are looking for. We are already planning our next vacation back to Manchebo!