I've tried a few new. RCL, Princess, Celebrity, Cunard and Viking. My favourites are Celebrity and Viking but they are vastly different. Itinerary is also really important. I don't tend to do Australian cruises. We don't tend to go to the shows as much. Viking is adults only, no photographers, casinos nor art shows. Alcohol etc is included with meals and generous pours. A much quieter experience. Beautiful amenities. Things like beautiful rugs draped on every chair. Wonderful food and specialty restaurants are free.