There will not be any RCL ships on the West coast anymore after Mariner pulls out in February so I you want to stay over there you will have no choice but to look at Carnival or Princess.
If you are willing to go to the East coast I would recommend Celebrity as it is much more adult oriented. Not that it doesn't have kids because it does, just not in the numbers RCL has. RCL is a family oriented cruiselines these days and they really cater to families.
Princess is probably more to your liking as well as it is also more adult oriented.
More than 300 days at sea so far with many more to come. (Actually more - one of these days I'll count them properly.)
Celebrity Solstice - Feb. 21/15 (moved out a year due to illness)
42 cruises - too many to list however cruiselines are in no particular order:
and some unknown tub
Yes, I'm a Royal Chump and proud of it.