YIPES....every cruise line, and at least one ship in their series (Fantasy, Destiny, class vessel). My favorite cruise line is Windstar...low-key, laid back with top levels of food and service. I also like Celebrity a lot. Vision of the Seas is stunning and so are the Princess ships.
My favorite trip was Antarctica aboard Radisson Seven Seas Hanseatic and while I don't love the Caribbean much, I'll go sailing anytime aboard Star Clippers.