I look for cruises by price, as I am a solo traveller and don't have the resources to pay double.
My favourite is Cunard, because I like the formality, and the activities were to my taste.
I also like RCI very much, and have had three cruises with the line. For the first time I have bought a next cruise voucher as I'm confident that I will go with RCI again. There was only a handful of children on my RCI cruises. There are plenty of activities during the day, which I like to join in with. I also like to spend my time on deck in the solarium, where children are excluded. It's also quieter there, away from the noise and bustle of the main pool.
Sun Cruises - Seawing ??/Sun Cruises - Carousel ??
QM2 - May 2011/Brilliance of the Seas - November 2011
Voyager of the Seas - April 2012/Queen Elizabeth - June 2012
NCL Jade - January 2013/Adventure of the Seas - November 2013
Norwegian Epic - October 2014/Braemar - November 2014
Brilliance of the Seas - May 2015/Brilliance of the Seas - September 2015/Explorer of the Seas - October 2015
Balmoral - March 2016/Ovation of the Seas - April 2016 (x2 B2B)/Britannia - October 2016/Queen Elizabeth - December 2016
Legend of the Seas - March 2017
Explorer of the Seas - September 2017 (x2 B2B)
Norwegian Getaway - October 2017
Mariner of the Seas - February 2018
Queen Victoria - October 2018