Hi, Gary C!
I have only sailed on CCL, started off as part of a group of 400 people for a seminar cruise in 2000, have gone every year since. Our group won't go to another line because of how well CCL has taken care of us and the needs a group of our size has, such as booking the public rooms, lounges etc, during the day for seminar sessions, grouping us all together in the dining room, cocktail parties, etc! The CCL of today is not what it was in the past. From others I know who have sailed on other lines, CCL and RCI, they say both lines are very comparable! If you stick with the newer ships, you are fine. You'll have to be sure to post a review of the Glory on this board. We are sailing on her next April with both sets of parents and are anxious to hear about her!
Happy Sails!