Many have an exceptionally strong preference for Royal Caribbean because it is the hands-down winner on value. Their newer ships are said to be spectacular, and their service is reportedly as good as it gets for the price. Their food vendors rival some of the ultra-luxury ships.
If you can afford to go on Silverseas and pay $1,000/day per diem or more, the experience will be out of the stratosphere for luxury. You will get a 1:1 crew/passenger ratio for the ultimate in service and pampering. Their food is said to be gourmet and the amenities you will enjoy will definitely provide you with a trip you won’t forget.
Princess is also a very popular choice. Celebrity can be pricier but with outstanding food. Carnival still has the get-down & party/younger (once in a while, drink & drown) market where the food is pretty ordinary and the ship decor is super neon glitz. Many previous passengers say that what they do, they do VERY well if you’re interested in a party-type atmosphere with the glitz of Las Vegas.
Pride of America cruise lines offers an excellent cruise around Hawaii with exceptional food and terrific service. The middle-of-the road cabins are actually quite spacious. The entertainment and amenities make for a wonderful experience.
Another factor should be the cruise line’s reputation for the quality of its cuisine, its menu, and its reputation for customer service. What is the ship’s previous safety and cleanliness record? How are the facilities on board the ship? What do the cabins look like? A lot of this information can be found online, but if you ask, most cruise lines will send you brochures free of charge for you to look at.