Azura is a ship (operated by P&O - British), Princess and RCI are Amercian cruise ship operators.

You can either compare Azura to a particular Princess or RCI ship, or you can compare P&O with Princess and RCI as companies.

Which comparison are you asking about?

The Azura and Grand Princess share a similar hull design - but internally they will be different.

I probably phrased the question not quite as intended. I'm interested to find out what people who have sailed on the Azura think about her. We have cruised twice with RCI and thoroughly enjoyed our time and we have just returned from our first Princess cruise which was a little disappointing in that we thought the service and the food was not as good.