I agree with the others. There is no single best line. I am in my early 30s and have cruised all the major lines except for Holland America and I think they all have many good and one or two not so good points. I prefer Carnival and RCCL to the others but I would not pass up a cruise on any line if it is the right deal. I have had better cruises than others but I have never had a "bad" cruise. Have a ball!!!!!!!!!!!