Carnival only makes the top 10 list for cruise lines based on certain criteria. Carnival scores top marks for being family-friendly, but it does not score as high as other cruise companies in other categories.
The Travel Channel ranks carnival in the five best cruise lines for families. Islands.com lists Carnival's seven-day western Caribbean cruise among the 20 best Caribbean cruises for 2015.
However, Carnival did not make Business Insider's list of the 10 best cruise lines in the world in 2014. Business Insider's ranking considered consumer reviews, expert ratings, crime reports and health inspection data in addition to reviews from U.S. News and the J.D. Power Cruise Line Satisfaction Report.