Six stars is the highest rating. These cruise lines have everything of the finest possible quality. Interiors are lavish and made of high quality wood, leather, fabric. The crockery used is expensive. Food served is exotic and tasteful. The cabins are very large. The staff is quite large and they try to provide personal attention to all passengers. These are meant for very high income groups. The atmosphere is quiet and social with few activities and few passengers. 5 Star cruise lines are also of very good quality. They have more activities as compared to 6 stars. These are more suitable for upper middle class. 4 star cruises are quite affordable with good quality service and food. These are more suitable for family vacations and first timers. 3 star cruises are very popular and find customers coming back again and again. These are full of activity and good for any age group and budget. They exist in large numbers and cover many locations. 2 and 1 star cruises are very pocket friendly but lack the spic and span glamour of new ones. Services are not bad and provide a good experience of cruising at a very reasonable price. The number of passengers is also quite high. The mood is more festive and carnival like.
Cruise lines vary in their mood, atmosphere, activities, facilities and comfort. They can give you a life time of an experience if chosen well. Brochures and websites provide detailed ratings of various cruise lines. To decide, one can read them in detail to look at destination options, travel time, affordability and whatever caters to individual interests. Whatever the rating, any cruise line experience is, overall, enjoyable.