Which ships?

I have been sailing since 1980, selling cruises since 1982 and mainly River Cruises to the Danube, Rhine and Russia for the last six years.
For the world cruise I had decided that although I do not normaly enjoy ships over 700 passengers The QM2 would be a great selection based on the availability of the following.

Facilities: Large library with more than 8,000 books, the largest Library at sea. Planetarium. Queen Mary 2's full-scale planetarium. It also functions as a grand cinema and a 500-seat lecture hall. Number of balcony cabins

Food and service: Pub Food, There's even a traditional Pub Lunch served every day, with classic favourites such as fish & chips and cottage pie. Indian food options, Afternoon Tea: Indulge in a truly British tradition. White-gloved waiters serve fresh scones with cream, finger sandwiches and premium tea in the Queens Room; you can also enjoy a full tea on our Promenade Deck, served each afternoon from our classic tea trolley.

Some Americans have a problem with the Cunard English "attitude and food." Since Cunard is now part of the Carnival company this has improved and also, being British by birth I have a good Idea of what to expect.

QM2 Facts
Length: 1,132 feet
Beam: 135 feet
Beam at Bridge Wings: 147.5 feet
Draft: 32 feet 10 inches
Height (Keel to Funnel): 236.2 feet
Gross Tonnage: Approximately 151,400 gross tonnes
Guest Capacity: 2,592 lower berths 3,056 maximum capacity (Including third and fourth berths)
Crew: 1,253
Cruise Speed: 28.5 Knots
Power: 157,000 horsepower, environmentally friendly, gas turbine/diesel electric plant
Propulsion: Four pods of 21.5 MW each; 2 fixed and 2 azimuthing
Strength: Extra thick steel hull for strength and stability for Transatlantic Crossings
Stabilizers: Two sets
Cost: Estimated $800 million

Some Comparisons:
QM2 is five times longer than Cunard's first ship, Britannia (230 ft.)
QM2 is 113 feet longer than the original Queen Mary
QM2 is more than twice as long as the Washington Monument is tall (550 ft.)
QM2 is 147 feet longer than the Eiffel Tower is tall (984 ft.)
QM2 is more than 3½ times as long as Westminster Tower (Big Ben) is high (310 ft.)
QM2 is only 117 feet shorter than the Empire State Building is tall (1248 ft.)
QM2 is more than three times as long as St. Paul's Cathedral is tall (366 ft.)
QM2 is as long as 41 double-decker London buses (31½ ft. each)
QM2's whistle is audible for 10 miles